CVE-2026-47351: TYPO3 CMS Broken Access Control Vulnerability

MODERATE
Advisory Identifier: GHSA-q93m-25xv-94hh
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CWE-862 CWE-200
Published
Advisory Summary

CVE-2026-47351 is a MODERATE broken access control vulnerability (CWE-862: Missing Authorization) affecting TYPO3 CMS libraries in the Packagist ecosystem. The issue involves broken access control in media module. Remediation is available by upgrading affected packages to version 10.4.57, 11.5.51, 12.4.46, 13.4.31, 14.3.3.

CVE-2026-47351 at a Glance

CVE Identifier CVE-2026-47351
GHSA Identifier GHSA-q93m-25xv-94hh
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification CWE-862: Missing Authorization
Affected Product TYPO3 CMS
Package Ecosystem Packagist
Published Date
Last Updated

How to Fix CVE-2026-47351

To remediate this vulnerability, upgrade all affected TYPO3 CMS dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

typo3/cms-core fixed: 10.4.57 
Upgrade typo3/cms-core to 10.4.57
typo3/cms-core fixed: 11.5.51 
Upgrade typo3/cms-core to 11.5.51
typo3/cms-core fixed: 12.4.46 
Upgrade typo3/cms-core to 12.4.46
typo3/cms-core fixed: 13.4.31 
Upgrade typo3/cms-core to 13.4.31
typo3/cms-core fixed: 14.3.3 
Upgrade typo3/cms-core to 14.3.3
typo3/cms-backend fixed: 10.4.57 
Upgrade typo3/cms-backend to 10.4.57
typo3/cms-backend fixed: 11.5.51 
Upgrade typo3/cms-backend to 11.5.51
typo3/cms-backend fixed: 12.4.46 
Upgrade typo3/cms-backend to 12.4.46
typo3/cms-backend fixed: 13.4.31 
Upgrade typo3/cms-backend to 13.4.31
typo3/cms-backend fixed: 14.3.3 
Upgrade typo3/cms-backend to 14.3.3
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for typo3/cms-core

How to Check if You Are Affected

To determine whether your application is affected by CVE-2026-47351, inspect your project dependencies for TYPO3 CMS:

inspect dependencies for typo3/cms-core

Analyze the terminal output to locate any version of TYPO3 CMS in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 10.4.57), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-862: Missing Authorization, where the product does not perform an authorization check when an actor attempts to access a resource or perform an action. In TYPO3 CMS, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Problem Backend users were able to insert arbitrary records and files into the TYPO3 clipboard without proper read permission checks, which allowed users to gather information about records and files they were not authorized to view. ### Solution Update to TYPO3 versions 10.4.57 ELTS, 11.5.51 ELTS, 12.4.46 ELTS, 13.4.31 LTS, 14.3.3 LTS that fix the problem described. ### Credits TYPO3 CMS thanks Vincent Yang for reporting this issue, and to TYPO3 security team member Elias Häußler for fixing it. ### Resources * [TYPO3-CORE-SA-2026-014](https://typo3.org/security/advisory/typo3-core-sa-2026-014)

CVE-2026-47351 Affected TYPO3 CMS Versions

10 component(s)
Fixed Versions:
10.4.5711.5.5112.4.4613.4.3114.3.3
Product / Package Ecosystem Affected Versions Fixed Version
typo3/cms-core
 Packagist
< 10.4.57
10.4.57
typo3/cms-core
 Packagist
≥ 11.0.0
< 11.5.51
11.5.51
typo3/cms-core
 Packagist
≥ 12.0.0
< 12.4.46
12.4.46
typo3/cms-core
 Packagist
≥ 13.0.0
< 13.4.31
13.4.31
typo3/cms-core
 Packagist
≥ 14.0.0
< 14.3.3
14.3.3
typo3/cms-backend
 Packagist
< 10.4.57
10.4.57
typo3/cms-backend
 Packagist
≥ 11.0.0
< 11.5.51
11.5.51
typo3/cms-backend
 Packagist
≥ 12.0.0
< 12.4.46
12.4.46
typo3/cms-backend
 Packagist
≥ 13.0.0
< 13.4.31
13.4.31
typo3/cms-backend
 Packagist
≥ 14.0.0
< 14.3.3
14.3.3

References

GitHub Advisory / Wiki ADVISORY
https://github.com/TYPO3/typo3/security/advisories/GHSA-q93m-25xv-94hh
NVD — CVE-2026-47351 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-47351
Security Fix Commit FIX COMMIT
https://github.com/TYPO3/typo3/commit/2740707563343d78184c0b7c6303a7484553d7f3
Security Fix Commit FIX COMMIT
https://github.com/TYPO3/typo3/commit/932fbb9fcea25094e8bcc0f0ec5aab56b1d92451
TYPO3 CMS Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2026-47351.yaml
TYPO3 CMS Source Repository REPOSITORY
https://github.com/TYPO3/typo3
TYPO3 CMS Security Information SECURITY
https://typo3.org/security/advisory/typo3-core-sa-2026-014

Frequently Asked Questions

What is CVE-2026-47351?
CVE-2026-47351 is a security vulnerability in TYPO3 CMS involving Broken Access Control in Media Module under CWE-862: Missing Authorization.
Which TYPO3 CMS versions are affected?
Affected versions include releases prior to 10.4.57, 11.5.51, 12.4.46, 13.4.31, 14.3.3 across affected packages: typo3/cms-core, typo3/cms-backend.
What version fixes CVE-2026-47351?
Upgrading to 10.4.57, 11.5.51, 12.4.46, 13.4.31, 14.3.3 (or the latest patched release for your respective branch) resolves the vulnerability.
Is typo3/cms-core affected?
Yes, typo3/cms-core is affected in releases prior to 10.4.57, 11.5.51, 12.4.46, 13.4.31, 14.3.3. Upgrade your dependency to 10.4.57, 11.5.51, 12.4.46, 13.4.31, 14.3.3 or later.
Is typo3/cms-backend affected?
Yes, typo3/cms-backend is affected in releases prior to 10.4.57, 11.5.51, 12.4.46, 13.4.31, 14.3.3. Upgrade your dependency to 10.4.57, 11.5.51, 12.4.46, 13.4.31, 14.3.3 or later.
What CWE is associated with CVE-2026-47351?
CVE-2026-47351 is classified under CWE-862: Missing Authorization (The product does not perform an authorization check when an actor attempts to access a resource or perform an action.).
How can I check Packagist dependencies for CVE-2026-47351?
Run the dependency tree command: 'inspect dependencies for typo3/cms-core'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-q93m-25xv-94hh",
  "modified" : "2026-06-12T19:06:59Z",
  "published" : "2026-06-12T19:06:59Z",
  "aliases" : [ "CVE-2026-47351" ],
  "summary" : "TYPO3 CMS: Broken Access Control in Media Module",
  "details" : "### Problem\nBackend users were able to insert arbitrary records and files into the TYPO3 clipboard without proper read permission checks, which allowed users to gather information about records and files they were not authorized to view.\n\n### Solution\nUpdate to TYPO3 versions 10.4.57 ELTS, 11.5.51 ELTS, 12.4.46 ELTS, 13.4.31 LTS, 14.3.3 LTS that fix the problem described.\n\n### Credits\nTYPO3 CMS thanks Vincent Yang for reporting this issue, and to TYPO3 security team member Elias Häußler for fixing it.\n\n### Resources\n* [TYPO3-CORE-SA-2026-014](https://typo3.org/security/advisory/typo3-core-sa-2026-014)",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "typo3/cms-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "10.4.57"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "typo3/cms-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "11.0.0"
      }, {
        "fixed" : "11.5.51"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "typo3/cms-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "12.0.0"
      }, {
        "fixed" : "12.4.46"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "typo3/cms-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "13.0.0"
      }, {
        "fixed" : "13.4.31"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "typo3/cms-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "14.0.0"
      }, {
        "fixed" : "14.3.3"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "typo3/cms-backend"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "10.4.57"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "typo3/cms-backend"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "11.0.0"
      }, {
        "fixed" : "11.5.51"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "typo3/cms-backend"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "12.0.0"
      }, {
        "fixed" : "12.4.46"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "typo3/cms-backend"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "13.0.0"
      }, {
        "fixed" : "13.4.31"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "typo3/cms-backend"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "14.0.0"
      }, {
        "fixed" : "14.3.3"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/TYPO3/typo3/security/advisories/GHSA-q93m-25xv-94hh"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-47351"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/TYPO3/typo3/commit/2740707563343d78184c0b7c6303a7484553d7f3"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/TYPO3/typo3/commit/932fbb9fcea25094e8bcc0f0ec5aab56b1d92451"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2026-47351.yaml"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/TYPO3/typo3"
  }, {
    "type" : "WEB",
    "url" : "https://typo3.org/security/advisory/typo3-core-sa-2026-014"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-200", "CWE-862" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-06-12T19:06:59Z",
    "nvd_published_at" : "2026-06-09T11:16:52Z"
  }
}