cve/2015/CVE-2015-5956.md

CVE-2015-5956

Description

The sanitizeLocalUrl function in TYPO3 6.x before 6.2.15, 7.x before 7.4.0, 4.5.40, and earlier allows remote authenticated users to bypass the XSS filter and conduct cross-site scripting (XSS) attacks via a base64 encoded data URI, as demonstrated by the (1) returnUrl parameter to show_rechis.php and the (2) redirect_url parameter to index.php.

POC

Reference

• http://packetstormsecurity.com/files/133551/Typo3-CMS-6.2.14-4.5.40-Cross-Site-Scripting.html
• http://seclists.org/fulldisclosure/2015/Sep/57

Github

• https://github.com/MrTuxracer/advisories
• https://github.com/ms217/typo3_patches