Cross site request forgery (csrf)

The jumpUrl mechanism in class.tslibfe.php in TYPO3 3.3.x through 3.8.x, 4.0 before 4.0.12, 4.1 before 4.1.10, 4.2 before 4.2.6, and 4.3alpha1 leaks a hash secret juHash in an error message, which allows remote attackers to read arbitrary files by including the hash in a request...