Bugzilla 3.6.x before 3.6.6, 3.7.x, 4.0.x before 4.0.2, and 4.1.x before 4.1.3 on Windows does not delete the temporary files associated with uploaded attachments, which allows local users to obtain sensitive information by reading these files. NOTE: this issue exists because of a regression in 3.6.
https://exchange.xforce.ibmcloud.com/vulnerabilities/69037
https://bugzilla.mozilla.org/show_bug.cgi?id=660502
http://www.securityfocus.com/bid/49042