CVE-2025-59020: TYPO3

Medium severity, CVSS 6.5. EPSS: 0.3% chance of exploitation in the next 30 days.

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. This issue affects TYPO3 CMS versions 10.0.0-10.4.54, 11.0.0-11.5.48, 12.0.0-12.4.40, 13.0.0-13.4.22 and 14.0.0-14.0.1.

Affected products

• TYPO3 TYPO3: from 10.0.0, before 10.4.55 (fixed in 10.4.55); from 11.0.0, before 11.5.49 (fixed in 11.5.49); from 12.0.0, before 12.4.41 (fixed in 12.4.41); from 13.0.0, before 13.4.23 (fixed in 13.4.23); from 14.0.0, before 14.0.2 (fixed in 14.0.2)

Published 2026-01-13. Last modified 2026-06-17.