What’s Vulnerable › Vulnerabilities
CVE-2025-59017: Broken Access Control in Backend AJAX Routes
- Severity: high (CVSS 8.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2025-09-09 · updated 2026-06-17
- Weakness: CWE-862
Description
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: from 9.0.0 before 9.5.55; from 10.0.0 before 10.4.54; from 11.0.0 before 11.5.48; from 12.0.0 before 12.4.37; from 13.0.0 before 13.4.18 — fixed in 10.4.54, 11.5.48, 12.4.37, 13.4.18, 9.5.55
How to fix
Upgrade to a fixed version: typo3 10.4.54, 11.5.48, 12.4.37, 13.4.18. Check the vendor advisory for mitigations.
References
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