Two threads in the past few hours over on the battle.net WoW forums reporting that they have had gold stolen using an exploit with Weak Auras.
Thread #1 in the General Forum titled "Watch out for weak auras 2 scam"
http://us.battle.net/wow/en/forum/topic/10780477954
This thread ^^ contains this link to a youtube video showing how to do the exploit:
http://www.youtube.com/watch?v=zF6C0ogK01Q
Thread #2 is posted in Customer Support:
Titled "Someone just stole all my gold"
http://us.battle.net/wow/en/forum/topic/10784768369