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GHSA-2j54-93q2-3hjq

TYPO3 CMS has Broken Access Control in Backend API

Source: GitHub Advisory Database (reviewed) Moderate CVE-2026-47352

Packages

EcosystemPackageAffectedFixed in
Packagist typo3/cms-core < 10.4.57 10.4.57
Packagist typo3/cms-core >= 11.0.0, < 11.5.51 11.5.51
Packagist typo3/cms-core >= 12.0.0, < 12.4.46 12.4.46
Packagist typo3/cms-core >= 13.0.0, < 13.4.31 13.4.31
Packagist typo3/cms-core >= 14.0.0, < 14.3.3 14.3.3
Packagist typo3/cms-backend < 10.4.57 10.4.57
Packagist typo3/cms-backend >= 11.0.0, < 11.5.51 11.5.51
Packagist typo3/cms-backend >= 12.0.0, < 12.4.46 12.4.46
Packagist typo3/cms-backend >= 13.0.0, < 13.4.31 13.4.31
Packagist typo3/cms-backend >= 14.0.0, < 14.3.3 14.3.3

Details

As written in the advisory (Markdown source, shown as plain text).

### Problem 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. ### Solution 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. ### Credits TYPO3 CMS thanks Phong Lan for reporting this issue, and to TYPO3 core & security team member Oliver Hader for fixing it. ### Resources * [TYPO3-CORE-SA-2026-015](https://typo3.org/security/advisory/typo3-core-sa-2026-015)

References

External links from the advisory. They lead to third-party sites.