CVE-2025-59017: TYPO3

High severity, CVSS 8.8. EPSS: 0.3% chance of exploitation in the next 30 days.

Missing authorization checks in the Backend Routing of TYPO3 CMS versions 9.0.0‑9.5.54, 10.0.0‑10.4.53, 11.0.0‑11.5.47, 12.0.0‑12.4.36, and 13.0.0‑13.4.17 allow backend users to directly invoke AJAX backend routes without having access to the corresponding backend modules.

Affected products

• TYPO3 TYPO3: from 9.0.0, before 9.5.55 (fixed in 9.5.55); from 10.0.0, before 10.4.54 (fixed in 10.4.54); from 11.0.0, before 11.5.48 (fixed in 11.5.48); from 12.0.0, before 12.4.37 (fixed in 12.4.37); from 13.0.0, before 13.4.18 (fixed in 13.4.18)

Published 2025-09-09. Last modified 2026-06-17.