TYPO3 vulnerable to Improper Access Control of Resources Referenced by t3:// URI Scheme

Problem

The TYPO3-specific t3:// URI scheme could be used to access resources outside of the users’ permission scope. This encompassed files, folders, pages, and records (although only if a valid link-handling configuration was provided). Exploiting this vulnerability requires a valid backend user account.

Solution

Update to TYPO3 versions 8.7.57 ELTS, 9.5.46 ELTS, 10.4.43 ELTS, 11.5.35 LTS, 12.4.11 LTS, 13.0.1 that fix the problem described.

Credits

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

References

• TYPO3-CORE-SA-2024-005