CVE-2024-34356: TYPO3

Medium severity, CVSS 5.4. EPSS: 0.5% chance of exploitation in the next 30 days.

TYPO3 is an enterprise content management system. Starting in version 9.0.0 and prior to versions 9.5.48 ELTS, 10.4.45 ELTS, 11.5.37 LTS, 12.4.15 LTS, and 13.1.1, the form manager backend module is vulnerable to cross-site scripting. Exploiting this vulnerability requires a valid backend user account with access to the form module. TYPO3 versions 9.5.48 ELTS, 10.4.45 ELTS, 11.5.37 LTS, 12.4.15 LTS, and 13.1.1 fix the problem described.

Affected products

• TYPO3 TYPO3: from 9.0.0, before 9.5.48 (fixed in 9.5.48); from 10.0.0, before 10.4.45 (fixed in 10.4.45); from 11.0.0, before 11.5.37 (fixed in 11.5.37); from 12.0.0, before 12.4.15 (fixed in 12.4.15); from 13.0.0, before 13.1.1 (fixed in 13.1.1)

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