An Improper Authentication vulnerability (CVE-2025-12998) exists in the TYPO3 Extension "Modules" (codingms/modules). This vulnerability affects multiple version ranges before specific fixed releases. It allows unauthorized access due to insufficient authentication controls. The vulnerability has a high severity score of 8.2 and has been addressed in versions 4.3.11, 5.7.4, 6.4.2, and 7.5.5.