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Medium

TYPO3 CMS Allows Broken Access Control in Edit Document Controller

  • Disclosed: 13.01.2026
  • Updated: 11.10.2026 10:22

Problem

By exploiting the defVals parameter, attackers could bypass field‑level access checks during record creation in the TYPO3 backend. This gave them the ability to insert arbitrary data into prohibited exclude fields of a database table for which the user already has write permission for a reduced set of fields.

Solution

Update to TYPO3 versions 10.4.55 ELTS, 11.5.49 ELTS, 12.4.41 LTS, 13.4.23 LTS, 14.0.2 that fix the problem described.

Credits

Thanks to Daniel Windloff for reporting this issue, and to TYPO3 core & security team member Benjamin Franzke for fixing it.

References

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
Composer package typo3/cms-backend >= 14.0.0, < 14.0.2, >= 13.0.0, < 13.4.23, >= 12.0.0, < 12.4.41, >= 11.0.0, < 11.5.49, >= 10.0.0, < 10.4.55 14.0.2, 13.4.23, 12.4.41, 11.5.49, 10.4.55

References

CVSS score -
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L
Weakness (CWE)
CWE-863
Platform
Composer
Package
typo3/cms-backend
Disclosed
13.01.2026
Updated
11.10.2026 10:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-5j7q-wmh7-cqhg - CC BY 4.0

Vulnerability history: typo3/cms-backend

All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (25) in the archive
Total entries
25
First → latest
03.2021 09.2026
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • High 6
  • Medium 16
  • Low 3

Disclosures per year

Severity:
  1. TYPO3 CMS - Broken Access Control in Backend and Install Tool
    High CVE-2026-19418 >= 13.0.0, < 13.4.34 13.4.34
  2. TYPO3 CMS Stores Cleartext Password in User Settings Module
    High · 7.5 CVE-2026-6553 >= 14.2.0, < 14.3.0 14.3.0
  3. TYPO3 CMS Allows Broken Access Control in Edit Document Controller this entry
    Medium CVE-2025-59020 >= 14.0.0, < 14.0.2, >= 13.0.0, < 13.4.23, >= 12.0.0, < 12.4.41, >= 11.0.0, < 11.5.49, >= 10.0.0, < 10.4.55 14.0.2, 13.4.23, 12.4.41, 11.5.49, 10.4.55
  4. The TYPO3 CMS Backend has Broken Authentication in Backend MFA
    High · 7.2 CVE-2025-47941 >= 12.0.0, < 12.4.31, >= 13.0.0, < 13.4.12 12.4.31, 13.4.12
  5. TYPO3 Backend Command Injection via Shell Metacharacters in Uploaded File Name
    High CVE-2009-3631 <= 4.0.13, >= 4.1.0, < 4.1.13, >= 4.2.0, < 4.2.10, >= 4.3alpha1, < 4.3beta2 4.1.13, 4.2.10, 4.3beta2
  6. TYPO3 SQL injection vulnerability on the backend
    High · 8.8 CVE-2010-3662 < 4.1.14, >= 4.2.0, < 4.2.13, >= 4.3.0, < 4.3.4, >= 4.4.0, < 4.4.1 4.1.14, 4.2.13, 4.3.4, 4.4.1
  7. TYPO3 Arbitrary Code Execution vulnerability on the backend
    High · 8.8 CVE-2010-3663 < 4.1.14, >= 4.2, < 4.2.13, >= 4.3, < 4.3.4, >= 4.4, < 4.4.1 4.1.14, 4.2.13, 4.3.4, 4.4.1

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