Multiple cross-site scripting (XSS) vulnerabilities in MailBee WebMail Pro 3.4 and earlier; and possibly MailBee WebMail Pro ASP before 3.4.64, WebMail Lite ASP before 4.0.11, and WebMail Lite PHP before 4.0.22; allow remote attackers to inject arbitrary web script or HTML via the (1) mode parameter to login.php and the (2) mode2 parameter to default.asp in an advanced_login mode.