Frontpage Server Extensions allows remote attackers to determine the physical path of a virtual directory via a GET request to the htimage.exe CGI program.
Microsoft FrontPage stores form results in a default location in /_private/form_results.txt, which is world-readable and accessible in the document root, which allows remote attackers to read possibly sensitive information submitted by other users.
Microsoft Personal Web Server and FrontPage Personal Web Server in some Windows systems allows a remote attacker to read files on the server by using a nonstandard URL.