Cross-site scripting (XSS) vulnerability in WebKit in Apple Safari before 6.0.5 allows remote attackers to inject arbitrary web script or HTML via vectors involving IFRAME elements.
http://support.apple.com/kb/HT5934
http://support.apple.com/kb/HT5785
http://secunia.com/advisories/54886
http://lists.apple.com/archives/security-announce/2013/Sep/msg00006.html
http://lists.apple.com/archives/security-announce/2013/Jun/msg00001.html