Cross-site scripting (XSS) vulnerability in the web management interface in httpd/cgi-bin/ipinfo.cgi in Smoothwall Express 3.1 and 3.0 SP3 and earlier allows remote attackers to inject arbitrary web script or HTML via the IP parameter in a Run action.

Cross-site request forgery (CSRF) vulnerability in the web management interface in httpd/cgi-bin/shutdown.cgi in Smoothwall Express 3.1 and 3.0 SP3 and earlier allows remote attackers to hijack the authentication of administrators for requests that perform a reboot via a request to cgi-bin/shutdown.cgi.

SmoothWall SmoothGuardian, as used in SmoothWall Firewall, NetworkGuardian, and SchoolGuardian 2008, when transparent interception mode is enabled, uses the HTTP Host header to determine the remote endpoint, which allows remote attackers to bypass access controls for Flash, Java, Silverlight, and probably other technologies, and possibly communicate with restricted intranet sites, via a crafted web page that causes a client to send HTTP requests with a modified Host header.