TYPO3 Exposure of Sensitive Information to an Unauthorized Actor Vulnerability - CVE-2009-3628
The Backend subcomponent in TYPO3 4.0.13 and earlier 4.1.x before 4.1.13 4.2.x before 4.2.10 and 4.3.x before 4.3beta2 allows remote authenticated users to determine an encryption key via crafted input to a tt_content form element.