A Critical vulnerability affects Mozilla Bugzilla bug-tracking software could be exploited to access details of non-public vulnerabilities stored in its database. The vulnerability is considered critical due to the sensitive data are managed by such kind of application, a data breach could expose information on non-Public vulnerability to the hackers that could use them in cyber attacks. Bugzilla is used by hundreds of thousands of software organizations that track the evolution of software bugs discovered in their applications. The last version available for the popular application is the 5.0.1, 4.4.10, or 4.2.15.”]
Source: http://securityaffairs.co/wordpress/40243/hacking/bugzilla-cve-2015-4499.html