WebKit in Apple iOS before 4 on the iPhone and iPod touch does not properly implement the history.replaceState method in certain situations involving IFRAME elements, which allows remote attackers to obtain sensitive information via a crafted HTML document.
https://exchange.xforce.ibmcloud.com/vulnerabilities/59629
http://www.vupen.com/english/advisories/2011/0552
http://www.vupen.com/english/advisories/2011/0212
http://www.vupen.com/english/advisories/2010/2722
http://www.ubuntu.com/usn/USN-1006-1
http://www.securityfocus.com/bid/41016
http://www.mandriva.com/security/advisories?name=MDVSA-2011:039
http://support.apple.com/kb/HT4456
http://support.apple.com/kb/HT4225
http://secunia.com/advisories/43068
http://secunia.com/advisories/42314
http://secunia.com/advisories/41856
http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00006.html
http://lists.apple.com/archives/security-announce/2010/Jun/msg00003.html
http://lists.apple.com/archives/security-announce/2010//Nov/msg00003.html