Multiple cross-site scripting (XSS) vulnerabilities in Sonexis ConferenceManager 9.2.11.0 allow remote attackers to inject arbitrary web script or HTML via (1) the txtConferenceID parameter to HostLogin.asp, (2) the txtConferenceID parameter to ParticipantLogin.asp, (3) the acp parameter to ForgotPIN.asp, or the (4) Description, (5) title, or (6) Heading parameter to Error.asp.