Provide references for CVE-2013-6839.
Where can I find more information about CVE-2013-6839?
References are available at: http://secunia.com/advisories/56041, http://www.instantcms.ru/novosti/security-update-1-10-3.html, https://www.htbridge.com/advisory/HTB23185, http://archives.neohapsis.com/archives/bugtraq/2013-12/0049.html, http://www.securityfocus.com/bid/63842.