Cross-site scripting (XSS) vulnerability in icue_login.asp in Maximus SchoolMAX 4.0.1 and earlier iCue and iParent applications allows remote attackers to inject arbitrary web script or HTML via the error_msg parameter.
http://www.vupen.com/english/advisories/2006/2453
http://www.securityfocus.com/bid/18563
http://www.securityfocus.com/archive/1/437640/100/0/threaded