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CVE-2026-47350

CVE-2026-47350 is a CWE-862 vulnerability in typo3/cms-core. O3 Security confirms whether CVE-2026-47350 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

TYPO3 CMS - Broken Access Control in DataHandler

Also known asGHSA-qcmw-6rm2-5x78
Published
Jun 9, 2026
Updated
Jul 25, 2026
Affected
2 pkgs
Patched
2 / 2
Exploits
None indexed

Blast Radius

2 pkgs affected
🐘typo3/cms-core🐘typo3/cms-core

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

Backend users were able to move records to a different page without having edit permissions on the source page. This issue affects TYPO3 CMS versions 13.0.0-13.4.30 and 14.0.0-14.3.2.

Affected Packages

2 total 2 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagisttypo3/cms-core13.0.0&&< 13.4.3113.4.31
🐘Packagisttypo3/cms-core14.0.0&&< 14.3.314.3.3

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 13.4.31 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-47350 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 CVE-2026-47350 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 CVE-2026-47350. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

Backend users were able to move records to a different page without having edit permissions on the source page. This issue affects TYPO3 CMS versions 13.0.0-13.4.30 and 14.0.0-14.3.2.
O3 Security · Impact-Aware SCA

Is CVE-2026-47350 in your dependencies?

O3 detects CVE-2026-47350 across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.