Mads Chr. Olesen

**Name of the Vulnerable Software and Affected Versions** TYPO3 versions prior to 4.3.12 TYPO3 versions 4.4.x prior to 4.4.9 TYPO3 versions 4.5.x prior to 4.5.4 **Description** The issue allows remote attackers to inject arbitrary web script or HTML via the "JSwindow" property of the typolink function, which can lead to Cross-site Scripting (XSS) attacks. **Recommendations** For versions prior to 4.3.12, update to version 4.3.12 or later. For versions 4.4.x prior to 4.4.9, update to version 4.4.9 or later. For versions 4.5.x prior to 4.5.4, update to version 4.5.4 or later.

**Name of the Vulnerable Software and Affected Versions** TYPO3 versions prior to 4.3.12 TYPO3 versions 4.4.x prior to 4.4.9 TYPO3 versions 4.5.x prior to 4.5.4 **Description** The issue allows remote attackers to bypass authentication mechanisms in the backend through a crafted request. **Recommendations** For versions prior to 4.3.12, update to version 4.3.12 or later. For versions 4.4.x prior to 4.4.9, update to version 4.4.9 or later. For versions 4.5.x prior to 4.5.4, update to version 4.5.4 or later.