CVE-2026-47346 (GCVE-0-2026-47346)

Vulnerability from cvelistv5 – Published: 2026-06-09 10:50 – Updated: 2026-06-09 12:52
VLAI
Title
TYPO3 CMS - Broken Access Control in Form Framework
Summary
Backend users with file write permissions were able to upload form definition files with mixed-case extensions (e.g., .FORM.YAML) to bypass the Form Framework's upload restriction. Maliciously crafted form definition files can be used to execute arbitrary SQL statements, allowing attackers to escalate privileges by creating administrative backend user accounts. This issue affects TYPO3 CMS versions before 10.4.57, 11.0.0-11.5.50, 12.0.0-12.4.45, 13.0.0-13.4.30 and 14.0.0-14.3.2.
Severity
7.6 (High)
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-178 - Improper Handling of Case Sensitivity
  • CWE-862 - Missing Authorization
Assigner
References
Impacted products
Vendor Product Version
TYPO3 TYPO3 CMS Affected: 0 , < 10.4.57 (semver)
Affected: 11.0.0 , < 11.5.51 (semver)
Affected: 12.0.0 , < 12.4.46 (semver)
Affected: 13.0.0 , < 13.4.31 (semver)
Affected: 14.0.0 , < 14.3.3 (semver)
Create a notification for this product.
Credits
Alexander Künzl Oliver Hader Benjamin Franzke
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-47346",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-09T12:51:14.282222Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-09T12:52:49.295Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://packagist.org",
          "defaultStatus": "unaffected",
          "modules": [
            "Form"
          ],
          "packageName": "typo3/cms-core",
          "product": "TYPO3 CMS",
          "repo": "https://github.com/TYPO3/typo3",
          "vendor": "TYPO3",
          "versions": [
            {
              "lessThan": "10.4.57",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThan": "11.5.51",
              "status": "affected",
              "version": "11.0.0",
              "versionType": "semver"
            },
            {
              "lessThan": "12.4.46",
              "status": "affected",
              "version": "12.0.0",
              "versionType": "semver"
            },
            {
              "lessThan": "13.4.31",
              "status": "affected",
              "version": "13.0.0",
              "versionType": "semver"
            },
            {
              "lessThan": "14.3.3",
              "status": "affected",
              "version": "14.0.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "10.4.57",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "11.5.51",
                  "versionStartIncluding": "11.0.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "12.4.46",
                  "versionStartIncluding": "12.0.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "13.4.31",
                  "versionStartIncluding": "13.0.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "14.3.3",
                  "versionStartIncluding": "14.0.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ],
          "operator": "OR"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "Alexander K\u00fcnzl"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Oliver Hader"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Benjamin Franzke"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Backend users with file write permissions were able to upload form definition files with mixed-case extensions (e.g., \u003ccode\u003e.FORM.YAML\u003c/code\u003e) to bypass the Form Framework\u0027s upload restriction. Maliciously crafted form definition files can be used to execute arbitrary SQL statements, allowing attackers to escalate privileges by creating administrative backend user accounts. This issue affects TYPO3 CMS versions before 10.4.57, 11.0.0-11.5.50, 12.0.0-12.4.45, 13.0.0-13.4.30 and 14.0.0-14.3.2."
            }
          ],
          "value": "Backend users with file write permissions were able to upload form definition files with mixed-case extensions (e.g., .FORM.YAML) to bypass the Form Framework\u0027s upload restriction. Maliciously crafted form definition files can be used to execute arbitrary SQL statements, allowing attackers to escalate privileges by creating administrative backend user accounts. This issue affects TYPO3 CMS versions before 10.4.57, 11.0.0-11.5.50, 12.0.0-12.4.45, 13.0.0-13.4.30 and 14.0.0-14.3.2."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 7.6,
            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-178",
              "description": "CWE-178 Improper Handling of Case Sensitivity",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-862",
              "description": "CWE-862 Missing Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-09T10:50:21.934Z",
        "orgId": "f4fb688c-4412-4426-b4b8-421ecf27b14a",
        "shortName": "TYPO3"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://typo3.org/security/advisory/typo3-core-sa-2026-008"
        },
        {
          "name": "Git commit of main branch",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/TYPO3/typo3/commit/2030617e6f273cee7b756c695f0a48a45a31eb47"
        },
        {
          "name": "Git commit of 13.4 branch",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/TYPO3/typo3/commit/eb2b2251d90339d3ab55df3d4c0378ae0c780b45"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "TYPO3 CMS - Broken Access Control in Form Framework",
      "x_generator": {
        "engine": "Vulnogram 1.0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f4fb688c-4412-4426-b4b8-421ecf27b14a",
    "assignerShortName": "TYPO3",
    "cveId": "CVE-2026-47346",
    "datePublished": "2026-06-09T10:50:21.934Z",
    "dateReserved": "2026-05-19T12:49:25.966Z",
    "dateUpdated": "2026-06-09T12:52:49.295Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-47346",
      "date": "2026-06-09",
      "epss": "0.0003",
      "percentile": "0.09004"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-47346\",\"sourceIdentifier\":\"f4fb688c-4412-4426-b4b8-421ecf27b14a\",\"published\":\"2026-06-09T11:16:52.320\",\"lastModified\":\"2026-06-09T13:46:50.540\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Backend users with file write permissions were able to upload form definition files with mixed-case extensions (e.g., .FORM.YAML) to bypass the Form Framework\u0027s upload restriction. Maliciously crafted form definition files can be used to execute arbitrary SQL statements, allowing attackers to escalate privileges by creating administrative backend user accounts. This issue affects TYPO3 CMS versions before 10.4.57, 11.0.0-11.5.50, 12.0.0-12.4.45, 13.0.0-13.4.30 and 14.0.0-14.3.2.\"}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"f4fb688c-4412-4426-b4b8-421ecf27b14a\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X\",\"baseScore\":7.6,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"PRESENT\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"HIGH\",\"vulnIntegrityImpact\":\"HIGH\",\"vulnAvailabilityImpact\":\"NONE\",\"subConfidentialityImpact\":\"NONE\",\"subIntegrityImpact\":\"NONE\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"NOT_DEFINED\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}]},\"weaknesses\":[{\"source\":\"f4fb688c-4412-4426-b4b8-421ecf27b14a\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-178\"},{\"lang\":\"en\",\"value\":\"CWE-862\"}]}],\"references\":[{\"url\":\"https://github.com/TYPO3/typo3/commit/2030617e6f273cee7b756c695f0a48a45a31eb47\",\"source\":\"f4fb688c-4412-4426-b4b8-421ecf27b14a\"},{\"url\":\"https://github.com/TYPO3/typo3/commit/eb2b2251d90339d3ab55df3d4c0378ae0c780b45\",\"source\":\"f4fb688c-4412-4426-b4b8-421ecf27b14a\"},{\"url\":\"https://typo3.org/security/advisory/typo3-core-sa-2026-008\",\"source\":\"f4fb688c-4412-4426-b4b8-421ecf27b14a\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-47346\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-06-09T12:51:14.282222Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-06-09T12:52:43.962Z\"}}], \"cna\": {\"title\": \"TYPO3 CMS - Broken Access Control in Form Framework\", \"source\": {\"discovery\": \"UNKNOWN\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"reporter\", \"value\": \"Alexander K\\u00fcnzl\"}, {\"lang\": \"en\", \"type\": \"remediation developer\", \"value\": \"Oliver Hader\"}, {\"lang\": \"en\", \"type\": \"remediation developer\", \"value\": \"Benjamin Franzke\"}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV4_0\": {\"Safety\": \"NOT_DEFINED\", \"version\": \"4.0\", \"Recovery\": \"NOT_DEFINED\", \"baseScore\": 7.6, \"Automatable\": \"NOT_DEFINED\", \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"valueDensity\": \"NOT_DEFINED\", \"vectorString\": \"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N\", \"exploitMaturity\": \"NOT_DEFINED\", \"providerUrgency\": \"NOT_DEFINED\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"PRESENT\", \"privilegesRequired\": \"LOW\", \"subIntegrityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"HIGH\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"NONE\", \"subConfidentialityImpact\": \"NONE\", \"vulnConfidentialityImpact\": \"HIGH\", \"vulnerabilityResponseEffort\": \"NOT_DEFINED\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"repo\": \"https://github.com/TYPO3/typo3\", \"vendor\": \"TYPO3\", \"modules\": [\"Form\"], \"product\": \"TYPO3 CMS\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"10.4.57\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"11.0.0\", \"lessThan\": \"11.5.51\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"12.0.0\", \"lessThan\": \"12.4.46\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"13.0.0\", \"lessThan\": \"13.4.31\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"14.0.0\", \"lessThan\": \"14.3.3\", \"versionType\": \"semver\"}], \"packageName\": \"typo3/cms-core\", \"collectionURL\": \"https://packagist.org\", \"defaultStatus\": \"unaffected\"}], \"references\": [{\"url\": \"https://typo3.org/security/advisory/typo3-core-sa-2026-008\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://github.com/TYPO3/typo3/commit/2030617e6f273cee7b756c695f0a48a45a31eb47\", \"name\": \"Git commit of main branch\", \"tags\": [\"patch\"]}, {\"url\": \"https://github.com/TYPO3/typo3/commit/eb2b2251d90339d3ab55df3d4c0378ae0c780b45\", \"name\": \"Git commit of 13.4 branch\", \"tags\": [\"patch\"]}], \"x_generator\": {\"engine\": \"Vulnogram 1.0.1\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"Backend users with file write permissions were able to upload form definition files with mixed-case extensions (e.g., .FORM.YAML) to bypass the Form Framework\u0027s upload restriction. Maliciously crafted form definition files can be used to execute arbitrary SQL statements, allowing attackers to escalate privileges by creating administrative backend user accounts. This issue affects TYPO3 CMS versions before 10.4.57, 11.0.0-11.5.50, 12.0.0-12.4.45, 13.0.0-13.4.30 and 14.0.0-14.3.2.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"Backend users with file write permissions were able to upload form definition files with mixed-case extensions (e.g., \u003ccode\u003e.FORM.YAML\u003c/code\u003e) to bypass the Form Framework\u0027s upload restriction. Maliciously crafted form definition files can be used to execute arbitrary SQL statements, allowing attackers to escalate privileges by creating administrative backend user accounts. This issue affects TYPO3 CMS versions before 10.4.57, 11.0.0-11.5.50, 12.0.0-12.4.45, 13.0.0-13.4.30 and 14.0.0-14.3.2.\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-178\", \"description\": \"CWE-178 Improper Handling of Case Sensitivity\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-862\", \"description\": \"CWE-862 Missing Authorization\"}]}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"10.4.57\"}, {\"criteria\": \"cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"11.5.51\", \"versionStartIncluding\": \"11.0.0\"}, {\"criteria\": \"cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"12.4.46\", \"versionStartIncluding\": \"12.0.0\"}, {\"criteria\": \"cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"13.4.31\", \"versionStartIncluding\": \"13.0.0\"}, {\"criteria\": \"cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"14.3.3\", \"versionStartIncluding\": \"14.0.0\"}], \"operator\": \"OR\"}], \"operator\": \"OR\"}], \"providerMetadata\": {\"orgId\": \"f4fb688c-4412-4426-b4b8-421ecf27b14a\", \"shortName\": \"TYPO3\", \"dateUpdated\": \"2026-06-09T10:50:21.934Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-47346\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-06-09T12:52:49.295Z\", \"dateReserved\": \"2026-05-19T12:49:25.966Z\", \"assignerOrgId\": \"f4fb688c-4412-4426-b4b8-421ecf27b14a\", \"datePublished\": \"2026-06-09T10:50:21.934Z\", \"assignerShortName\": \"TYPO3\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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.