- Component Type: TYPO3 CMS
- Subcomponent: Frontend Rendering (ext:frontend)
- Release Date: May 14, 2024
- Vulnerability Type: Cross-Site Scripting
- Affected Versions: 9.0.0-9.5.47, 10.0.0-10.4.44, 11.0.0-11.5.36, 12.0.0-12.4.14, 13.0.0-13.1.0
- Severity: Medium
- Suggested CVSS: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:F/RL:O/RC:C
- References: CVE-2024-34357, CWE-79
Problem Description
Failing to properly encode user-controlled values in file entities, the ShowImageController (eID tx_cms_showpic) is vulnerable to cross-site scripting. Exploiting this vulnerability requires a valid backend user account with access to file entities.
Solution
Update to TYPO3 versions 9.5.48 ELTS, 10.4.45 ELTS, 11.5.37 LTS, 12.4.15 LTS, 13.1.1 that fix the problem described.
Credits
Thanks to TYPO3 security team member Torben Hansen who reported this issue and to TYPO3 core & security team member Oliver Hader 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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