CVE-2026-11607

Name of the Vulnerable Software and Affected Versions TYPO3 CMS versions prior to 10.4.57 TYPO3 CMS versions 11.0.0 through 11.5.51 TYPO3 CMS versions 12.0.0 through 12.4.46 TYPO3 CMS versions 13.0.0 through 13.4.31 TYPO3 CMS versions 14.0.0 through 14.3.3

Description Backend users with access to the Form Framework can utilize files that do not end with the .form.yaml extension as form definitions, as the system fails to deny incorrect file extensions. Maliciously crafted form definition files can be used to execute arbitrary SQL statements, enabling attackers to escalate privileges by creating administrative backend user accounts.

Recommendations Update to version 10.4.57 or later. Update to version 11.5.52 or later. Update to version 12.4.47 or later. Update to version 13.4.32 or later. Update to version 14.3.4 or later.