Script Editor in Apple OS X before 10.11.1 allows remote attackers to bypass an intended user-confirmation requirement for AppleScript execution via unspecified vectors.
https://www.exploit-db.com/exploits/38535/
https://support.apple.com/HT205375
http://packetstormsecurity.com/files/134072/Safari-User-Assisted-Applescript-Exec-Attack.html
http://lists.apple.com/archives/security-announce/2015/Oct/msg00005.html