Apple Safari Subframe Same-Origin Policy Bypass Vulnerability

This vulnerability allows remote attackers to bypass the same-origin policy on vulnerable installations of Apple Safari. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file and execute a user gesture within the rendered HTML. The specific flaw exists within the handling of subframes. The issue lies in the ability to execute arbitrary JavaScript without preserving the original origin. An attacker can leverage this vulnerability to execute script in the context of a different domain.