GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2021-29454 (GCVE-0-2021-29454)

Vulnerability from cvelistv5 – Published: 2022-01-10 00:00 – Updated: 2025-04-23 19:14
VLAI
Title
Sandbox Escape by math function in smarty
Summary
Smarty is a template engine for PHP, facilitating the separation of presentation (HTML/CSS) from application logic. Prior to versions 3.1.42 and 4.0.2, template authors could run arbitrary PHP code by crafting a malicious math string. If a math string was passed through as user provided data to the math function, external users could run arbitrary PHP code by crafting a malicious math string. Users should upgrade to version 3.1.42 or 4.0.2 to receive a patch.
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-23 15:57 UTC
CWE
  • CWE-74 - Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
Assigner
References
Impacted products
Vendor Product Version CPE status
smarty-php smarty Affected: < 3.1.42
Affected: >= 4.0.0, < 4.0.2
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T22:02:51.996Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/smarty-php/smarty/security/advisories/GHSA-29gp-2c3m-3j6m"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/smarty-php/smarty/commit/215d81a9fa3cd63d82fb3ab56ecaf97cf1e7db71"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/smarty-php/smarty/releases/tag/v3.1.42"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/smarty-php/smarty/releases/tag/v4.0.2"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://packagist.org/packages/smarty/smarty"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.smarty.net/docs/en/language.function.math.tpl"
          },
          {
            "name": "[debian-lts-announce] 20220505 [SECURITY] [DLA 2995-1] smarty3 security update",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2022/05/msg00005.html"
          },
          {
            "name": "DSA-5151",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://www.debian.org/security/2022/dsa-5151"
          },
          {
            "name": "GLSA-202209-09",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/202209-09"
          },
          {
            "name": "FEDORA-2022-52154efd61",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L777JIBIWJV34HS7LXPIDWASG7TT4LNI/"
          },
          {
            "name": "FEDORA-2022-d5fc9dcdd7",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BRAJVDRGCIY5UZ2PQHKDTT7RMKG6WJQQ/"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-29454",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-23T15:57:13.410401Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-04-23T19:14:05.629Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "smarty",
          "vendor": "smarty-php",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.1.42"
            },
            {
              "status": "affected",
              "version": "\u003e= 4.0.0, \u003c 4.0.2"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Smarty is a template engine for PHP, facilitating the separation of presentation (HTML/CSS) from application logic. Prior to versions 3.1.42 and 4.0.2, template authors could run arbitrary PHP code by crafting a malicious math string. If a math string was passed through as user provided data to the math function, external users could run arbitrary PHP code by crafting a malicious math string. Users should upgrade to version 3.1.42 or 4.0.2 to receive a patch."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-74",
              "description": "CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component (\u0027Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-11-14T00:00:00.000Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "url": "https://github.com/smarty-php/smarty/security/advisories/GHSA-29gp-2c3m-3j6m"
        },
        {
          "url": "https://github.com/smarty-php/smarty/commit/215d81a9fa3cd63d82fb3ab56ecaf97cf1e7db71"
        },
        {
          "url": "https://github.com/smarty-php/smarty/releases/tag/v3.1.42"
        },
        {
          "url": "https://github.com/smarty-php/smarty/releases/tag/v4.0.2"
        },
        {
          "url": "https://packagist.org/packages/smarty/smarty"
        },
        {
          "url": "https://www.smarty.net/docs/en/language.function.math.tpl"
        },
        {
          "name": "[debian-lts-announce] 20220505 [SECURITY] [DLA 2995-1] smarty3 security update",
          "tags": [
            "mailing-list"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2022/05/msg00005.html"
        },
        {
          "name": "DSA-5151",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://www.debian.org/security/2022/dsa-5151"
        },
        {
          "name": "GLSA-202209-09",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://security.gentoo.org/glsa/202209-09"
        },
        {
          "name": "FEDORA-2022-52154efd61",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L777JIBIWJV34HS7LXPIDWASG7TT4LNI/"
        },
        {
          "name": "FEDORA-2022-d5fc9dcdd7",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BRAJVDRGCIY5UZ2PQHKDTT7RMKG6WJQQ/"
        }
      ],
      "source": {
        "advisory": "GHSA-29gp-2c3m-3j6m",
        "discovery": "UNKNOWN"
      },
      "title": "Sandbox Escape by math function in smarty"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2021-29454",
    "datePublished": "2022-01-10T00:00:00.000Z",
    "dateReserved": "2021-03-30T00:00:00.000Z",
    "dateUpdated": "2025-04-23T19:14:05.629Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2021-29454",
      "date": "2026-09-20",
      "epss": "0.01927",
      "percentile": "0.79059"
    },
    "fkie_nvd": {
      "configurations": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:smarty:smarty:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "4F2A8FC7-D5C2-4D88-A172-000065020043",
                  "versionEndExcluding": "3.1.42",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:smarty:smarty:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "C66B5163-B419-4BBF-8F97-C6CFEB9CB37A",
                  "versionEndExcluding": "4.0.2",
                  "versionStartIncluding": "4.0.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        },
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
                  "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
                  "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*",
                  "matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        },
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*",
                  "matchCriteriaId": "5C675112-476C-4D7C-BCB9-A2FB2D0BC9FD",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*",
                  "matchCriteriaId": "E30D0E6F-4AE8-4284-8716-991DFA48CC5D",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Smarty is a template engine for PHP, facilitating the separation of presentation (HTML/CSS) from application logic. Prior to versions 3.1.42 and 4.0.2, template authors could run arbitrary PHP code by crafting a malicious math string. If a math string was passed through as user provided data to the math function, external users could run arbitrary PHP code by crafting a malicious math string. Users should upgrade to version 3.1.42 or 4.0.2 to receive a patch."
        },
        {
          "lang": "es",
          "value": "Smarty es un motor de plantillas para PHP que facilita la separaci\u00f3n de la presentaci\u00f3n (HTML/CSS) de la l\u00f3gica de la aplicaci\u00f3n. Antes de las versiones 3.1.42 y 4.0.2, los autores de plantillas pod\u00edan ejecutar c\u00f3digo PHP arbitrario al dise\u00f1ar una cadena matem\u00e1tica maliciosa. Si era pasada una cadena matem\u00e1tica como datos proporcionados por el usuario a la funci\u00f3n matem\u00e1tica, los usuarios externos pod\u00edan ejecutar c\u00f3digo PHP arbitrario al dise\u00f1ar una cadena matem\u00e1tica maliciosa. Los usuarios deben actualizar a la versi\u00f3n 3.1.42 o 4.0.2 para recibir un parche"
        }
      ],
      "id": "CVE-2021-29454",
      "lastModified": "2024-11-21T06:01:08.007",
      "metrics": {
        "cvssMetricV2": [
          {
            "acInsufInfo": false,
            "baseSeverity": "MEDIUM",
            "cvssData": {
              "accessComplexity": "LOW",
              "accessVector": "NETWORK",
              "authentication": "SINGLE",
              "availabilityImpact": "PARTIAL",
              "baseScore": 6.5,
              "confidentialityImpact": "PARTIAL",
              "integrityImpact": "PARTIAL",
              "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
              "version": "2.0"
            },
            "exploitabilityScore": 8.0,
            "impactScore": 6.4,
            "obtainAllPrivilege": false,
            "obtainOtherPrivilege": false,
            "obtainUserPrivilege": false,
            "source": "nvd@nist.gov",
            "type": "Primary",
            "userInteractionRequired": false
          }
        ],
        "cvssMetricV31": [
          {
            "cvssData": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 8.1,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
              "version": "3.1"
            },
            "exploitabilityScore": 2.8,
            "impactScore": 5.2,
            "source": "security-advisories@github.com",
            "type": "Secondary"
          },
          {
            "cvssData": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 8.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            },
            "exploitabilityScore": 2.8,
            "impactScore": 5.9,
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      },
      "published": "2022-01-10T20:15:08.000",
      "references": [
        {
          "source": "security-advisories@github.com",
          "tags": [
            "Patch",
            "Third Party Advisory"
          ],
          "url": "https://github.com/smarty-php/smarty/commit/215d81a9fa3cd63d82fb3ab56ecaf97cf1e7db71"
        },
        {
          "source": "security-advisories@github.com",
          "tags": [
            "Release Notes",
            "Third Party Advisory"
          ],
          "url": "https://github.com/smarty-php/smarty/releases/tag/v3.1.42"
        },
        {
          "source": "security-advisories@github.com",
          "tags": [
            "Release Notes",
            "Third Party Advisory"
          ],
          "url": "https://github.com/smarty-php/smarty/releases/tag/v4.0.2"
        },
        {
          "source": "security-advisories@github.com",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://github.com/smarty-php/smarty/security/advisories/GHSA-29gp-2c3m-3j6m"
        },
        {
          "source": "security-advisories@github.com",
          "tags": [
            "Mailing List",
            "Third Party Advisory"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2022/05/msg00005.html"
        },
        {
          "source": "security-advisories@github.com",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BRAJVDRGCIY5UZ2PQHKDTT7RMKG6WJQQ/"
        },
        {
          "source": "security-advisories@github.com",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L777JIBIWJV34HS7LXPIDWASG7TT4LNI/"
        },
        {
          "source": "security-advisories@github.com",
          "tags": [
            "Product",
            "Third Party Advisory"
          ],
          "url": "https://packagist.org/packages/smarty/smarty"
        },
        {
          "source": "security-advisories@github.com",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://security.gentoo.org/glsa/202209-09"
        },
        {
          "source": "security-advisories@github.com",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://www.debian.org/security/2022/dsa-5151"
        },
        {
          "source": "security-advisories@github.com",
          "tags": [
            "Vendor Advisory"
          ],
          "url": "https://www.smarty.net/docs/en/language.function.math.tpl"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Patch",
            "Third Party Advisory"
          ],
          "url": "https://github.com/smarty-php/smarty/commit/215d81a9fa3cd63d82fb3ab56ecaf97cf1e7db71"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Release Notes",
            "Third Party Advisory"
          ],
          "url": "https://github.com/smarty-php/smarty/releases/tag/v3.1.42"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Release Notes",
            "Third Party Advisory"
          ],
          "url": "https://github.com/smarty-php/smarty/releases/tag/v4.0.2"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://github.com/smarty-php/smarty/security/advisories/GHSA-29gp-2c3m-3j6m"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Mailing List",
            "Third Party Advisory"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2022/05/msg00005.html"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BRAJVDRGCIY5UZ2PQHKDTT7RMKG6WJQQ/"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L777JIBIWJV34HS7LXPIDWASG7TT4LNI/"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Product",
            "Third Party Advisory"
          ],
          "url": "https://packagist.org/packages/smarty/smarty"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://security.gentoo.org/glsa/202209-09"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://www.debian.org/security/2022/dsa-5151"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Vendor Advisory"
          ],
          "url": "https://www.smarty.net/docs/en/language.function.math.tpl"
        }
      ],
      "sourceIdentifier": "security-advisories@github.com",
      "vulnStatus": "Modified",
      "weaknesses": [
        {
          "description": [
            {
              "lang": "en",
              "value": "CWE-74"
            }
          ],
          "source": "security-advisories@github.com",
          "type": "Secondary"
        },
        {
          "description": [
            {
              "lang": "en",
              "value": "CWE-74"
            }
          ],
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ]
    },
    "nvd": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:smarty:smarty:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "4F2A8FC7-D5C2-4D88-A172-000065020043",
                    "versionEndExcluding": "3.1.42",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:smarty:smarty:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "C66B5163-B419-4BBF-8F97-C6CFEB9CB37A",
                    "versionEndExcluding": "4.0.2",
                    "versionStartIncluding": "4.0.0",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*",
                    "matchCriteriaId": "5C675112-476C-4D7C-BCB9-A2FB2D0BC9FD",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*",
                    "matchCriteriaId": "E30D0E6F-4AE8-4284-8716-991DFA48CC5D",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "Smarty is a template engine for PHP, facilitating the separation of presentation (HTML/CSS) from application logic. Prior to versions 3.1.42 and 4.0.2, template authors could run arbitrary PHP code by crafting a malicious math string. If a math string was passed through as user provided data to the math function, external users could run arbitrary PHP code by crafting a malicious math string. Users should upgrade to version 3.1.42 or 4.0.2 to receive a patch."
          },
          {
            "lang": "es",
            "value": "Smarty es un motor de plantillas para PHP que facilita la separaci\u00f3n de la presentaci\u00f3n (HTML/CSS) de la l\u00f3gica de la aplicaci\u00f3n. Antes de las versiones 3.1.42 y 4.0.2, los autores de plantillas pod\u00edan ejecutar c\u00f3digo PHP arbitrario al dise\u00f1ar una cadena matem\u00e1tica maliciosa. Si era pasada una cadena matem\u00e1tica como datos proporcionados por el usuario a la funci\u00f3n matem\u00e1tica, los usuarios externos pod\u00edan ejecutar c\u00f3digo PHP arbitrario al dise\u00f1ar una cadena matem\u00e1tica maliciosa. Los usuarios deben actualizar a la versi\u00f3n 3.1.42 o 4.0.2 para recibir un parche"
          }
        ],
        "id": "CVE-2021-29454",
        "lastModified": "2024-11-21T06:01:08.007",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
              "cvssData": {
                "accessComplexity": "LOW",
                "accessVector": "NETWORK",
                "authentication": "SINGLE",
                "availabilityImpact": "PARTIAL",
                "baseScore": 6.5,
                "confidentialityImpact": "PARTIAL",
                "integrityImpact": "PARTIAL",
                "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
                "version": "2.0"
              },
              "exploitabilityScore": 8.0,
              "impactScore": 6.4,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ],
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 8.1,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "REQUIRED",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 2.8,
              "impactScore": 5.2,
              "source": "security-advisories@github.com",
              "type": "Secondary"
            },
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 8.8,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 2.8,
              "impactScore": 5.9,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2022-01-10T20:15:08.000",
        "references": [
          {
            "source": "security-advisories@github.com",
            "tags": [
              "Patch",
              "Third Party Advisory"
            ],
            "url": "https://github.com/smarty-php/smarty/commit/215d81a9fa3cd63d82fb3ab56ecaf97cf1e7db71"
          },
          {
            "source": "security-advisories@github.com",
            "tags": [
              "Release Notes",
              "Third Party Advisory"
            ],
            "url": "https://github.com/smarty-php/smarty/releases/tag/v3.1.42"
          },
          {
            "source": "security-advisories@github.com",
            "tags": [
              "Release Notes",
              "Third Party Advisory"
            ],
            "url": "https://github.com/smarty-php/smarty/releases/tag/v4.0.2"
          },
          {
            "source": "security-advisories@github.com",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://github.com/smarty-php/smarty/security/advisories/GHSA-29gp-2c3m-3j6m"
          },
          {
            "source": "security-advisories@github.com",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2022/05/msg00005.html"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BRAJVDRGCIY5UZ2PQHKDTT7RMKG6WJQQ/"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L777JIBIWJV34HS7LXPIDWASG7TT4LNI/"
          },
          {
            "source": "security-advisories@github.com",
            "tags": [
              "Product",
              "Third Party Advisory"
            ],
            "url": "https://packagist.org/packages/smarty/smarty"
          },
          {
            "source": "security-advisories@github.com",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://security.gentoo.org/glsa/202209-09"
          },
          {
            "source": "security-advisories@github.com",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://www.debian.org/security/2022/dsa-5151"
          },
          {
            "source": "security-advisories@github.com",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://www.smarty.net/docs/en/language.function.math.tpl"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch",
              "Third Party Advisory"
            ],
            "url": "https://github.com/smarty-php/smarty/commit/215d81a9fa3cd63d82fb3ab56ecaf97cf1e7db71"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Release Notes",
              "Third Party Advisory"
            ],
            "url": "https://github.com/smarty-php/smarty/releases/tag/v3.1.42"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Release Notes",
              "Third Party Advisory"
            ],
            "url": "https://github.com/smarty-php/smarty/releases/tag/v4.0.2"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://github.com/smarty-php/smarty/security/advisories/GHSA-29gp-2c3m-3j6m"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2022/05/msg00005.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BRAJVDRGCIY5UZ2PQHKDTT7RMKG6WJQQ/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L777JIBIWJV34HS7LXPIDWASG7TT4LNI/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Product",
              "Third Party Advisory"
            ],
            "url": "https://packagist.org/packages/smarty/smarty"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://security.gentoo.org/glsa/202209-09"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://www.debian.org/security/2022/dsa-5151"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://www.smarty.net/docs/en/language.function.math.tpl"
          }
        ],
        "sourceIdentifier": "security-advisories@github.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-74"
              }
            ],
            "source": "security-advisories@github.com",
            "type": "Secondary"
          },
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-74"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "current_release_date": "2025-11-21T16:01:55+00:00",
      "cve": "CVE-2021-29454",
      "id": "CVE-2021-29454",
      "initial_release_date": "2021-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "php-Smarty: template authors could run arbitrary PHP code by crafting a malicious math string",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-29454.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "providerMetadata": {
              "dateUpdated": "2024-08-03T22:02:51.996Z",
              "orgId": "af854a3a-2127-422b-91ae-364da2661108",
              "shortName": "CVE"
            },
            "references": [
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://github.com/smarty-php/smarty/security/advisories/GHSA-29gp-2c3m-3j6m"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://github.com/smarty-php/smarty/commit/215d81a9fa3cd63d82fb3ab56ecaf97cf1e7db71"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://github.com/smarty-php/smarty/releases/tag/v3.1.42"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://github.com/smarty-php/smarty/releases/tag/v4.0.2"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://packagist.org/packages/smarty/smarty"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://www.smarty.net/docs/en/language.function.math.tpl"
              },
              {
                "name": "[debian-lts-announce] 20220505 [SECURITY] [DLA 2995-1] smarty3 security update",
                "tags": [
                  "mailing-list",
                  "x_transferred"
                ],
                "url": "https://lists.debian.org/debian-lts-announce/2022/05/msg00005.html"
              },
              {
                "name": "DSA-5151",
                "tags": [
                  "vendor-advisory",
                  "x_transferred"
                ],
                "url": "https://www.debian.org/security/2022/dsa-5151"
              },
              {
                "name": "GLSA-202209-09",
                "tags": [
                  "vendor-advisory",
                  "x_transferred"
                ],
                "url": "https://security.gentoo.org/glsa/202209-09"
              },
              {
                "name": "FEDORA-2022-52154efd61",
                "tags": [
                  "vendor-advisory",
                  "x_transferred"
                ],
                "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L777JIBIWJV34HS7LXPIDWASG7TT4LNI/"
              },
              {
                "name": "FEDORA-2022-d5fc9dcdd7",
                "tags": [
                  "vendor-advisory",
                  "x_transferred"
                ],
                "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BRAJVDRGCIY5UZ2PQHKDTT7RMKG6WJQQ/"
              }
            ],
            "title": "CVE Program Container"
          },
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2021-29454",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2025-04-23T15:57:13.410401Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2025-04-23T15:57:15.621Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "product": "smarty",
              "vendor": "smarty-php",
              "versions": [
                {
                  "status": "affected",
                  "version": "\u003c 3.1.42"
                },
                {
                  "status": "affected",
                  "version": "\u003e= 4.0.0, \u003c 4.0.2"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "Smarty is a template engine for PHP, facilitating the separation of presentation (HTML/CSS) from application logic. Prior to versions 3.1.42 and 4.0.2, template authors could run arbitrary PHP code by crafting a malicious math string. If a math string was passed through as user provided data to the math function, external users could run arbitrary PHP code by crafting a malicious math string. Users should upgrade to version 3.1.42 or 4.0.2 to receive a patch."
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 8.1,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "REQUIRED",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
                "version": "3.1"
              }
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-74",
                  "description": "CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component (\u0027Injection\u0027)",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2022-11-14T00:00:00.000Z",
            "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
            "shortName": "GitHub_M"
          },
          "references": [
            {
              "url": "https://github.com/smarty-php/smarty/security/advisories/GHSA-29gp-2c3m-3j6m"
            },
            {
              "url": "https://github.com/smarty-php/smarty/commit/215d81a9fa3cd63d82fb3ab56ecaf97cf1e7db71"
            },
            {
              "url": "https://github.com/smarty-php/smarty/releases/tag/v3.1.42"
            },
            {
              "url": "https://github.com/smarty-php/smarty/releases/tag/v4.0.2"
            },
            {
              "url": "https://packagist.org/packages/smarty/smarty"
            },
            {
              "url": "https://www.smarty.net/docs/en/language.function.math.tpl"
            },
            {
              "name": "[debian-lts-announce] 20220505 [SECURITY] [DLA 2995-1] smarty3 security update",
              "tags": [
                "mailing-list"
              ],
              "url": "https://lists.debian.org/debian-lts-announce/2022/05/msg00005.html"
            },
            {
              "name": "DSA-5151",
              "tags": [
                "vendor-advisory"
              ],
              "url": "https://www.debian.org/security/2022/dsa-5151"
            },
            {
              "name": "GLSA-202209-09",
              "tags": [
                "vendor-advisory"
              ],
              "url": "https://security.gentoo.org/glsa/202209-09"
            },
            {
              "name": "FEDORA-2022-52154efd61",
              "tags": [
                "vendor-advisory"
              ],
              "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L777JIBIWJV34HS7LXPIDWASG7TT4LNI/"
            },
            {
              "name": "FEDORA-2022-d5fc9dcdd7",
              "tags": [
                "vendor-advisory"
              ],
              "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BRAJVDRGCIY5UZ2PQHKDTT7RMKG6WJQQ/"
            }
          ],
          "source": {
            "advisory": "GHSA-29gp-2c3m-3j6m",
            "discovery": "UNKNOWN"
          },
          "title": "Sandbox Escape by math function in smarty"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "assignerShortName": "GitHub_M",
        "cveId": "CVE-2021-29454",
        "datePublished": "2022-01-10T00:00:00.000Z",
        "dateReserved": "2021-03-30T00:00:00.000Z",
        "dateUpdated": "2025-04-23T19:14:05.629Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.