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.
Remediation
References
Related Vulnerabilities
WebLogic CVE-2016-3505 Vulnerability (CVE-2016-3505)
Drupal Improper Input Validation Vulnerability (CVE-2012-5653)
Rukovoditel Cross-Site Request Forgery (CSRF) Vulnerability (CVE-2021-30224)
WordPress Plugin Featured Posts by BestWebSoft Cross-Site Scripting (1.0.0)
WordPress Plugin Vertical SlideShow Arbitrary File Upload (2.3)