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GHSA-2j54-93q2-3hjq

GHSA-2j54-93q2-3hjq is a CWE-862 vulnerability in typo3/cms-core. O3 Security confirms whether GHSA-2j54-93q2-3hjq is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

TYPO3 CMS has Broken Access Control in Backend API

Also known asCVE-2026-47352
Published
Jun 12, 2026
Updated
Jun 12, 2026
Affected
10 pkgs
Patched
10 / 10
Exploits
None indexed

Blast Radius

10 pkgs affected
🐘typo3/cms-core🐘typo3/cms-core🐘typo3/cms-core🐘typo3/cms-core🐘typo3/cms-core🐘typo3/cms-backend🐘typo3/cms-backend🐘typo3/cms-backend+2 more

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

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

Affected Packages

10 total 10 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagisttypo3/cms-coreall versions10.4.57
🐘Packagisttypo3/cms-core11.0.0&&< 11.5.5111.5.51
🐘Packagisttypo3/cms-core12.0.0&&< 12.4.4612.4.46
🐘Packagisttypo3/cms-core13.0.0&&< 13.4.3113.4.31
🐘Packagisttypo3/cms-core14.0.0&&< 14.3.314.3.3
🐘Packagisttypo3/cms-backendall versions10.4.57

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for typo3/cms-core. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update typo3/cms-core to 10.4.57 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-2j54-93q2-3hjq is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 pinpoints whether GHSA-2j54-93q2-3hjq is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-2j54-93q2-3hjq. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

### 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)
O3 Security · Impact-Aware SCA

Is GHSA-2j54-93q2-3hjq in your dependencies?

O3 detects GHSA-2j54-93q2-3hjq across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.