What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 5.3 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-09 · updated 2026-07-23
• Weakness: CWE-862

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 products

• typo3: before 10.4.57; from 11.0.0 before 11.5.51; from 12.0.0 before 12.4.46; from 13.0.0 before 13.4.31; from 14.0.0 before 14.3.3 — fixed in 10.4.57, 11.5.51, 12.4.46, 13.4.31, 14.3.3

How to fix

Upgrade to a fixed version: typo3 10.4.57, 11.5.51, 12.4.46, 13.4.31. Check the vendor advisory for mitigations.

References

• https://github.com/TYPO3/typo3/commit/17a3b7830d5931725db5fdab0cfc76d479884c96
• https://github.com/TYPO3/typo3/commit/bfe7c354168f467726020ed49299dd209a455719
• https://typo3.org/security/advisory/typo3-core-sa-2026-015

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