WebKit in Apple Safari before 4.0 allows remote attackers to spoof the browser's display of (1) the host name, (2) security indicators, and unspecified other UI elements via a custom cursor in conjunction with a modified CSS3 hotspot property.
https://exchange.xforce.ibmcloud.com/vulnerabilities/51263
http://www.vupen.com/english/advisories/2011/0212
http://www.vupen.com/english/advisories/2009/1522
http://www.securityfocus.com/bid/35340
http://www.debian.org/security/2009/dsa-1950
http://support.apple.com/kb/HT3613
http://secunia.com/advisories/43068
http://secunia.com/advisories/37746
http://secunia.com/advisories/35379
http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00006.html
http://lists.apple.com/archives/security-announce/2009/jun/msg00002.html