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Vulnerability · Published Jun 9, 2026 · Assigned by TYPO3

CVE-2026-47352TYPO3 CMS - Broken Access Control in Backend API

Medium 5.3

In plain English

A medium-severity missing authorization in TYPO3 CMS from TYPO3. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 15% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)5.3Medium
Exploit odds (30 days)0.2%top 85.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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. This issue affects TYPO3 CMS versions before 10.4.57, 11.0.0-11.5.50, 12.0.0-12.4.45, 13.0.0-13.4.30 and 14.0.0-14.3.2.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Packagisttypo3/cms-backend14.3.3GHSA-2j54-93q2-3hjq
Packagisttypo3/cms-backend10.4.57GHSA-2j54-93q2-3hjq
Packagisttypo3/cms-backend11.5.51GHSA-2j54-93q2-3hjq
Packagisttypo3/cms-backend12.4.46GHSA-2j54-93q2-3hjq
Packagisttypo3/cms-backend13.4.31GHSA-2j54-93q2-3hjq
Packagisttypo3/cms-core10.4.57GHSA-2j54-93q2-3hjq
Packagisttypo3/cms-core11.5.51GHSA-2j54-93q2-3hjq
Packagisttypo3/cms-core12.4.46GHSA-2j54-93q2-3hjq
Packagisttypo3/cms-core13.4.31GHSA-2j54-93q2-3hjq
Packagisttypo3/cms-core14.3.3GHSA-2j54-93q2-3hjq

Affected products (as reported)

VendorProductVersions
TYPO3 TYPO3 CMS 0 – before 10.4.5711.0.0 – before 11.5.5112.0.0 – before 12.4.4613.0.0 – before 13.4.3114.0.0 – before 14.3.3

Weakness: CWE-862 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

References