Multiple cross-site scripting (XSS) vulnerabilities in InstantASP 4.1.0 allow remote attackers to inject arbitrary web script or HTML via the (1) SessionID parameter to (a) Logon.aspx, and the (2) Username and (3) Update parameters to (b) Members1.aspx.
https://exchange.xforce.ibmcloud.com/vulnerabilities/31521
http://www.vupen.com/english/advisories/2007/0227
http://www.securityfocus.com/bid/22052
http://www.securityfocus.com/archive/1/456970/100/0/threaded
http://securityreason.com/securityalert/2164