Bugzilla 2.x through 4.0.x before 4.0.15, 4.1.x and 4.2.x before 4.2.11, 4.3.x and 4.4.x before 4.4.6, and 4.5.x before 4.5.6 allows remote authenticated users to obtain sensitive private-comment information by leveraging a role as a flag recipient, related to Bug.pm, Flag.pm, and a mail template.
https://bugzilla.mozilla.org/show_bug.cgi?id=1064140
http://www.securitytracker.com/id/1030978
http://www.mandriva.com/security/advisories?name=MDVSA-2014:200
http://www.bugzilla.org/security/4.0.14/
http://packetstormsecurity.com/files/128578/Bugzilla-Account-Creation-XSS-Information-Leak.html
http://lists.fedoraproject.org/pipermail/package-announce/2014-October/141321.html
http://lists.fedoraproject.org/pipermail/package-announce/2014-October/141309.html
http://lists.fedoraproject.org/pipermail/package-announce/2014-November/142524.html