WebKit in Apple Safari 3 Beta before Update 3.0.3 does not properly recognize an unchecked "Enable Java" setting, which allows remote attackers to execute Java applets via a crafted web page.
https://exchange.xforce.ibmcloud.com/vulnerabilities/35714
http://www.vupen.com/english/advisories/2007/2730
http://www.securityfocus.com/bid/25157