CVE-2013-5612
Cross-site scripting (XSS) vulnerability in Mozilla Firefox before 26.0 and SeaMonkey before 2.23 makes it easier for remote attackers to inject arbitrary web script or HTML by leveraging a Same Origin Policy violation triggered by lack of a charset parameter in a Content-Type HTTP header.
Date published : 2013-12-11
http://www.securityfocus.com/bid/64205
http://www.mozilla.org/security/announce/2013/mfsa2013-106.html