This is not really an Exploit but more of a warning to set your guild bank levels correctly.
Recently we invited a new member to the guild and they cleared out our guild bank 3 and 4 as we had the withdraw rights set to allow recruits the abillity to withdraw.
This person joined the guild cleared out the bank and left the guild.
Nothing we could do, about this exept learn from the event.
So make sure you dont set the rights 2 low for this to happen for you and make sure who you invite can be trusted.
Fortunatly for us bank 3 and 4 were full of just collections and adept I spells so not to much damage was done.
Just thought I would share this so you dont get hit also, by the theives in the game.
Posting something like that on a hack site.... hmmm
No really that sucks I hope you guys are making that person's life a living hell via in game alearts and SOE's msg. board so no one will invite him into their guild.