Sophos Web Appliance before 3.7.8.2 allows (1) remote attackers to execute arbitrary commands via shell metacharacters in the client-ip parameter to the Block page, when using the user_workstation variable in a customized template, and remote authenticated users to execute arbitrary commands via shell metacharacters in the (2) url parameter to the Diagnostic Tools functionality or (3) entries parameter to the Local Site List functionality.
The management console on the Symantec Web Gateway (SWG) appliance before 5.1.1 allows remote attackers to execute arbitrary commands by injecting a command into an application script.
Multiple cross-site scripting (XSS) vulnerabilities in Sophos Web Appliance before 3.7.8.2 allow remote attackers to inject arbitrary web script or HTML via the (1) xss parameter in an allow action to rss.php, (2) msg parameter to end-user/errdoc.php, (3) h parameter to end-user/ftp_redirect.php, or (4) threat parameter to the Blocked component.