Bugzilla 2.14 before 2.14.2, and 2.16 before 2.16rc2, allows remote attackers to display restricted products and components via a direct HTTP request to queryhelp.cgi.
http://www.securityfocus.com/bid/4964
http://www.iss.net/security_center/static/9300.php
http://bugzilla.mozilla.org/show_bug.cgi?id=126801
http://archives.neohapsis.com/archives/bugtraq/2002-06/0054.html