• Component Type: TYPO3 CMS
• Subcomponent: History Module (ext:backend)
• Release Date: May 14, 2024
• Vulnerability Type: HTML Injection
• Affected Versions: 13.0.0-13.1.0
• Severity: Low
• Suggested CVSS: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:F/RL:O/RC:C
• References: CVE-2024-34355, CWE-116

Problem Description

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.

Solution

Update to TYPO3 version 13.1.1 that fixes the problem described.

Credits

Thanks to TYPO3 core team member Andreas Kienast who reported this issue and to TYPO3 core & security team Benjamin Franzke who fixed the issue.

General Advice

Follow the recommendations that are given in the TYPO3 Security Guide. Please subscribe to the typo3-announce mailing list.

General Note

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