--------------------------------------------------------------------------------- 1. Summary: When using the Facebook 'Messages' tab, there is a feature to attach a file. Using this feature normally, the site won't allow a user to attach an executable file. A bug was discovered to subvert this security mechanisms. Note, you do NOT have to be friends with the user to send them a message with an attachment. --------------------------------------------------------------------------------- Read the rest of this advisory here: http://www.securitypentest.com/2011/10/facebook-attach-exe-vulnerability.html Enjoy :) Nathan Power www.securitypentest.com