Multiple cross-site scripting (XSS) vulnerabilities in PHP scripts in the management console on Symantec Web Gateway (SWG) appliances with software before 5.2.2 DB 5.0.0.1277 allow remote attackers to inject arbitrary web script or HTML via unspecified vectors, as demonstrated an attack against admin_messages.php.
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.