Multiple cross-site scripting (XSS) vulnerabilities in Claroline 1.8.3 allow remote attackers to inject arbitrary web script or HTML via the PATH_INFO (PHP_SELF) to (1) index.php, (2) demo/claroline170/index.php, and possibly other scripts.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.006
EPSS Ranking 69.0%