The be_user_creation task in TYPO3 4.2.x before 4.2.15 and 4.3.x before 4.3.7 allows remote authenticated users to gain privileges via a crafted POST request that creates a user account with arbitrary group memberships.

Multiple cross-site scripting (XSS) vulnerabilities in TYPO3 4.2.x before 4.2.15, 4.3.x before 4.3.7, and 4.4.x before 4.4.4 allow remote attackers to inject arbitrary web script or HTML via vectors related to (1) the RemoveXSS function, and allow remote authenticated users to inject arbitrary web script or HTML via vectors related to (2) the backend.

The t3lib_div::validEmail function in TYPO3 4.2.x before 4.2.15, 4.3.x before 4.3.7, and 4.4.x before 4.4.4 does not properly restrict input to filter_var FILTER_VALIDATE_EMAIL operations in PHP, which allows remote attackers to cause a denial of service (memory consumption and application crash) via a long e-mail address string, a related issue to CVE-2010-3710.

Unspecified vulnerability in the Extension Manager in TYPO3 4.2.x before 4.2.15, 4.3.x before 4.3.7, and 4.4.x before 4.4.4 allows remote authenticated administrators to read and possibly modify arbitrary files via a crafted parameter, a different vulnerability than CVE-2010-3714.

The Install Tool 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 attackers to gain access by using only the password's md5 hash as a credential.

Cross-site scripting (XSS) vulnerability in the t3lib_div::quoteJSvalue API function 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 attackers to inject arbitrary web script or HTML via unspecified vectors related to the sanitizing algorithm.

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, when the DAM extension or ftp upload is enabled, allows remote authenticated users to execute arbitrary commands via shell metacharacters in a filename.

Cross-site scripting (XSS) vulnerability in the Install Tool 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 attackers to inject arbitrary web script or HTML via unspecified parameters.

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.

Multiple cross-site scripting (XSS) vulnerabilities in 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 allow remote authenticated users to inject arbitrary web script or HTML via unspecified vectors.