Cross-site scripting vulnerabilities in Blackboard 5 allow remote attackers to execute arbitrary web script via (1) the course_id parameter in a link to login.pl, (2) the CTID parameter in ProcessInfo.cgi, or (3) the Message parameter in index.cgi.
BlackBoard CourseInfo 4.0 does not properly authenticate users, which allows local users to modify CourseInfo database information and gain privileges by directly calling the supporting CGI programs such as user_update_passwd.pl and user_update_admin.pl.