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 showrechis.php and the (2) redirecturl parameter to index.php.
{ "nvd_published_at": "2015-09-16T14:59:00Z", "cwe_ids": [ "CWE-79" ], "severity": "LOW", "github_reviewed": true, "github_reviewed_at": "2024-04-25T21:35:16Z" }