The installer for BackOffice Server includes account names and passwords in a setup file (reboot.ini) which is not deleted.

Microsoft Taskpads allows remote web sites to execute commands on the visiting user's machine via certain methods that are marked as Safe for Scripting.

Microsoft BackOffice 4.0 and 4.5, when configured to be accessible by other systems, allows remote attackers to bypass authentication and access the administrative ASP pages via an HTTP request with an authorization type (auth_type) that is not blank.