Cross-site scripting (XSS) vulnerability in dompdf/dompdf/www/demo.php infaveo-helpdesk v1.11.0 and below allow remote attackers to inject arbitrary web script or HTML via the $_SERVER["PHP_SELF"] parameter.Referenceshttps://github.com/ladybirdweb/faveo-helpdesk/issues/5423https://github.com/ladybirdweb/faveo-helpdesk