CVE-2026-47352Medium▾ SunlitTYPO3 CMS has Broken Access Control in Backend API
▾ Sunlit zone — Low / medium · no exploitation signal
impact 27.5 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Jul 7.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via GHSA
0.2%
Authenticated backend users were able to retrieve file metadata via several Backend API routes without proper permission checks, allowing access to files outside their permitted file mounts or storages.
Update to TYPO3 versions 10.4.57 ELTS, 11.5.51 ELTS, 12.4.46 ELTS, 13.4.31 LTS, 14.3.3 LTS that fix the problem described.
TYPO3 CMS thanks Phong Lan for reporting this issue, and to TYPO3 core & security team member Oliver Hader for fixing it.
typo3/cms-core < 10.4.57typo3/cms-core >= 11.0.0, < 11.5.51typo3/cms-core >= 12.0.0, < 12.4.46typo3/cms-core >= 13.0.0, < 13.4.31typo3/cms-core >= 14.0.0, < 14.3.3typo3/cms-backend < 10.4.57typo3/cms-backend >= 11.0.0, < 11.5.51typo3/cms-backend >= 12.0.0, < 12.4.46typo3/cms-backend >= 13.0.0, < 13.4.31typo3/cms-backend >= 14.0.0, < 14.3.3Upgrade to a patched release:
typo3/cms-core 10.4.57typo3/cms-core 11.5.51typo3/cms-core 12.4.46typo3/cms-core 13.4.31typo3/cms-core 14.3.3typo3/cms-backend 10.4.57typo3/cms-backend 11.5.51typo3/cms-backend 12.4.46typo3/cms-backend 13.4.31typo3/cms-backend 14.3.3Connected by shared product, vendor, weakness, or advisory.
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