CVE-2024-34355: TYPO3

Medium severity, CVSS 5.4. EPSS: 0.6% chance of exploitation in the next 30 days.

TYPO3 is an enterprise content management system. Starting in version 13.0.0 and prior to version 13.1.1, the history backend module is vulnerable to HTML injection. Although Content-Security-Policy headers effectively prevent JavaScript execution, adversaries can still inject malicious HTML markup. Exploiting this vulnerability requires a valid backend user account. TYPO3 version 13.1.1 fixes the problem described.

Affected products

• TYPO3 TYPO3: from 13.0.0, before 13.1.1 (fixed in 13.1.1)

Published 2024-05-14. Last modified 2026-06-17.