Unspecified vulnerability in sr_feuser_register 1.4.0, 1.6.0, 2.2.1 to 2.2.7, 2.3.0 to 2.3.6, 2.4.0, and 2.5.0 to 2.5.9 extension for TYPO3 allows remote attackers to execute arbitrary code and delete arbitrary files via unspecified attack vectors.