Cross-site scripting (XSS) vulnerability in index.php in Nucleus 3.01 allows remote attackers to inject arbitrary web script or HTML via the archive parameter.
http://www.securityfocus.com/bid/26035
http://www.securityfocus.com/archive/1/482006/100/0/threaded
http://websecurity.com.ua/1347/
http://securityvulns.ru/Sdocument3.html