TYPO3 CMS Allows Broken Access Control in Edit Document Controller
### 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 * [TYPO3-CORE-SA-2026-001](https://typo3.org/security/advisory/typo3-core-sa-2026-001)
beschreibt (1)
Zugehörige CVEs.
| ID | Schweregrad | ausnutzbar | ||
|---|---|---|---|---|
| CVE-2025-59020US | medium6.5OT erhöht | — | ||
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 da… | ||||
Referenzen
Externe Belege — Patches, Meldungen, Analysen.
- https://github.com/TYPO3/typo3PACKAGE
- https://github.com/TYPO3/typo3/commit/ac3f792bd5ab7c58153fc1075cb9e001c9cebe3bWEB
- https://github.com/TYPO3/typo3/commit/cd11a19958d823d12d028f9345b41739c7e70118WEB
- https://github.com/TYPO3/typo3/commit/fb98378a8fd30dd50d89a3d1a420780819f38232WEB
- https://github.com/TYPO3/typo3/security/advisories/GHSA-5j7q-wmh7-cqhgWEB
- https://nvd.nist.gov/vuln/detail/CVE-2025-59020ADVISORY
- https://typo3.org/security/advisory/typo3-core-sa-2026-001WEB
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