Vulnerability-Lookup

CNVD-2021-44696

Vulnerability from cnvd - Published: 2021-06-24

Title

Roundcube Webmail跨站脚本漏洞（CNVD-2021-44696）

Description

RoundCube Webmail是一个基于浏览器、支持多国语言的IMAP客户端，操作界面类似桌面应用程序。 Roundcube Webmail中的rcube_string_replacer.php中的linkref_addindex存在跨站脚本漏洞，攻击者可通过特制电子邮件利用该漏洞进行跨站脚本攻击。

Severity

中

Patch Name

Roundcube Webmail跨站脚本漏洞（CNVD-2021-44696）的补丁

Patch Description

RoundCube Webmail是一个基于浏览器、支持多国语言的IMAP客户端，操作界面类似桌面应用程序。 Roundcube Webmail中的rcube_string_replacer.php中的linkref_addindex存在跨站脚本漏洞，攻击者可通过特制电子邮件利用该漏洞进行跨站脚本攻击。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://roundcube.net/download/

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-35730

Impacted products

Name
['RoundCube RoundCube Webmail <1.2.13', 'RoundCube RoundCube Webmail 1.3.，<1.3.16', 'RoundCube RoundCube Webmail 1.4.，<1.4.10']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-35730",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-35730"
    }
  },
  "description": "RoundCube Webmail\u662f\u4e00\u4e2a\u57fa\u4e8e\u6d4f\u89c8\u5668\u3001\u652f\u6301\u591a\u56fd\u8bed\u8a00\u7684IMAP\u5ba2\u6237\u7aef\uff0c\u64cd\u4f5c\u754c\u9762\u7c7b\u4f3c\u684c\u9762\u5e94\u7528\u7a0b\u5e8f\u3002\n\nRoundcube Webmail\u4e2d\u7684rcube_string_replacer.php\u4e2d\u7684linkref_addindex\u5b58\u5728\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u7279\u5236\u7535\u5b50\u90ae\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u8fdb\u884c\u8de8\u7ad9\u811a\u672c\u653b\u51fb\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://roundcube.net/download/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-44696",
  "openTime": "2021-06-24",
  "patchDescription": "RoundCube Webmail\u662f\u4e00\u4e2a\u57fa\u4e8e\u6d4f\u89c8\u5668\u3001\u652f\u6301\u591a\u56fd\u8bed\u8a00\u7684IMAP\u5ba2\u6237\u7aef\uff0c\u64cd\u4f5c\u754c\u9762\u7c7b\u4f3c\u684c\u9762\u5e94\u7528\u7a0b\u5e8f\u3002\r\n\r\nRoundcube Webmail\u4e2d\u7684rcube_string_replacer.php\u4e2d\u7684linkref_addindex\u5b58\u5728\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u7279\u5236\u7535\u5b50\u90ae\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u8fdb\u884c\u8de8\u7ad9\u811a\u672c\u653b\u51fb\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Roundcube Webmail\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\uff08CNVD-2021-44696\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "RoundCube RoundCube Webmail \u003c1.2.13",
      "RoundCube RoundCube Webmail 1.3.*\uff0c\u003c1.3.16",
      "RoundCube RoundCube Webmail 1.4.*\uff0c\u003c1.4.10"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-35730",
  "serverity": "\u4e2d",
  "submitTime": "2020-12-29",
  "title": "Roundcube Webmail\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\uff08CNVD-2021-44696\uff09"
}

CVE-2020-35730 (GCVE-0-2020-35730)

Vulnerability from cvelistv5 – Published: 2020-12-28 19:37 – Updated: 2025-10-21 23:35

Summary

An XSS issue was discovered in Roundcube Webmail before 1.2.13, 1.3.x before 1.3.16, and 1.4.x before 1.4.10. The attacker can send a plain text e-mail message, with JavaScript in a link reference element that is mishandled by linkref_addindex in rcube_string_replacer.php.

Severity

6.1 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

SSVC

Exploitation: active Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-02-04 20:21 UTC

CWE

n/a
CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

mitre mitre root

References

10 references

URL	Tags
https://roundcube.net/download/	x_refsource_MISC
https://github.com/roundcube/roundcubemail/compar…	x_refsource_CONFIRM
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug…	x_refsource_CONFIRM
https://www.alexbirnberg.com/roundcube-xss.html	x_refsource_MISC
https://github.com/roundcube/roundcubemail/releas…	x_refsource_CONFIRM
https://github.com/roundcube/roundcubemail/releas…	x_refsource_CONFIRM
https://github.com/roundcube/roundcubemail/releas…	x_refsource_CONFIRM
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://www.cisa.gov/known-exploited-vulnerabilit…	government-resource

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T17:09:15.160Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://roundcube.net/download/"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/roundcube/roundcubemail/compare/1.4.9...1.4.10"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=978491"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.alexbirnberg.com/roundcube-xss.html"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/roundcube/roundcubemail/releases/tag/1.4.10"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/roundcube/roundcubemail/releases/tag/1.3.16"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/roundcube/roundcubemail/releases/tag/1.2.13"
          },
          {
            "name": "FEDORA-2021-2cb0643316",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HMLIZWKMTRCLU7KZLEQHELS4INXJ7X5Q/"
          },
          {
            "name": "FEDORA-2021-73359af51c",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HCEU4BM5WGIDJWP6Z4PCH62ZMH57QYM2/"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 6.1,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "LOW",
              "privilegesRequired": "NONE",
              "scope": "CHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2020-35730",
                "options": [
                  {
                    "Exploitation": "active"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-02-04T20:21:48.700288Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          },
          {
            "other": {
              "content": {
                "dateAdded": "2023-06-22",
                "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-35730"
              },
              "type": "kev"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-79",
                "description": "CWE-79 Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-21T23:35:31.104Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "government-resource"
            ],
            "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-35730"
          }
        ],
        "timeline": [
          {
            "lang": "en",
            "time": "2023-06-22T00:00:00.000Z",
            "value": "CVE-2020-35730 added to CISA KEV"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "An XSS issue was discovered in Roundcube Webmail before 1.2.13, 1.3.x before 1.3.16, and 1.4.x before 1.4.10. The attacker can send a plain text e-mail message, with JavaScript in a link reference element that is mishandled by linkref_addindex in rcube_string_replacer.php."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-01-13T03:06:08.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://roundcube.net/download/"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/roundcube/roundcubemail/compare/1.4.9...1.4.10"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=978491"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.alexbirnberg.com/roundcube-xss.html"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/roundcube/roundcubemail/releases/tag/1.4.10"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/roundcube/roundcubemail/releases/tag/1.3.16"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/roundcube/roundcubemail/releases/tag/1.2.13"
        },
        {
          "name": "FEDORA-2021-2cb0643316",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HMLIZWKMTRCLU7KZLEQHELS4INXJ7X5Q/"
        },
        {
          "name": "FEDORA-2021-73359af51c",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HCEU4BM5WGIDJWP6Z4PCH62ZMH57QYM2/"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2020-35730",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "An XSS issue was discovered in Roundcube Webmail before 1.2.13, 1.3.x before 1.3.16, and 1.4.x before 1.4.10. The attacker can send a plain text e-mail message, with JavaScript in a link reference element that is mishandled by linkref_addindex in rcube_string_replacer.php."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://roundcube.net/download/",
              "refsource": "MISC",
              "url": "https://roundcube.net/download/"
            },
            {
              "name": "https://github.com/roundcube/roundcubemail/compare/1.4.9...1.4.10",
              "refsource": "CONFIRM",
              "url": "https://github.com/roundcube/roundcubemail/compare/1.4.9...1.4.10"
            },
            {
              "name": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=978491",
              "refsource": "CONFIRM",
              "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=978491"
            },
            {
              "name": "https://www.alexbirnberg.com/roundcube-xss.html",
              "refsource": "MISC",
              "url": "https://www.alexbirnberg.com/roundcube-xss.html"
            },
            {
              "name": "https://github.com/roundcube/roundcubemail/releases/tag/1.4.10",
              "refsource": "CONFIRM",
              "url": "https://github.com/roundcube/roundcubemail/releases/tag/1.4.10"
            },
            {
              "name": "https://github.com/roundcube/roundcubemail/releases/tag/1.3.16",
              "refsource": "CONFIRM",
              "url": "https://github.com/roundcube/roundcubemail/releases/tag/1.3.16"
            },
            {
              "name": "https://github.com/roundcube/roundcubemail/releases/tag/1.2.13",
              "refsource": "CONFIRM",
              "url": "https://github.com/roundcube/roundcubemail/releases/tag/1.2.13"
            },
            {
              "name": "FEDORA-2021-2cb0643316",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HMLIZWKMTRCLU7KZLEQHELS4INXJ7X5Q/"
            },
            {
              "name": "FEDORA-2021-73359af51c",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HCEU4BM5WGIDJWP6Z4PCH62ZMH57QYM2/"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2020-35730",
    "datePublished": "2020-12-28T19:37:08.000Z",
    "dateReserved": "2020-12-27T00:00:00.000Z",
    "dateUpdated": "2025-10-21T23:35:31.104Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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.

Action not permitted

CNVD-2021-44696

CVE-2020-35730 (GCVE-0-2020-35730)

Tags

Sightings

Nomenclature

Related by attack behaviour