Multiple cross-site scripting (XSS) vulnerabilities in ProjectApp 3.3 and earlier allow remote attackers to inject arbitrary web script or HTML via the keywords parameter to (1) forums.asp, (2) search_employees.asp, (3) cat.asp, and (4) links.asp; (5) projectid parameter to pmprojects.asp, (6) ret_page parameter to login.asp, and (7) skin_number parameter to default.asp.
http://www.vupen.com/english/advisories/2005/3040
http://secunia.com/advisories/18199
http://pridels0.blogspot.com/2005/12/projectapp-mutliple-xss-vuln.html