Comment Related exploit (Score 1) 124
It is also worth pointing out another Facebook exploit which allows a page to 'run' Javascript on a Facebook page. It prompts the user to perform certain actions which copy-and-paste a 'javascript:' style URL to the address bar, and to click Enter to execute the Javascript. This also has the potential to spread fast by sharing it with all of your friends. See http://infinity-infinity.com/2010/05/facebook-exploit-social-engineering-javascript-injection/.