WebCore on Apple Mac OS X 10.3.9 and 10.4.10, as used in Safari, does not properly parse HTML comments in TITLE elements, which allows remote attackers to conduct cross-site scripting (XSS) attacks and bypass some XSS protection schemes by embedding certain HTML tags within an HTML comment.
https://exchange.xforce.ibmcloud.com/vulnerabilities/31846
http://www.vupen.com/english/advisories/2007/2732
http://www.securityfocus.com/bid/25159
http://www.securityfocus.com/archive/1/457763/100/0/threaded
http://www.beanfuzz.com/wordpress/?p=99
http://securitytracker.com/id?1018494
http://secunia.com/advisories/26235
http://secunia.com/advisories/23893
http://lists.apple.com/archives/security-announce//2007/Jul/msg00004.html