Durring trade you send two packets, one that tells the server what is actually in the trade, and the other packet is to tell the server what the other player will see.
You can put items in the trade frame while the trade is not open, and the trade acts as an actual bag inventory funny enough. Was able to at one time put an item into trade while trade was never initiated, then place the real item from inventory into the bank, now you have a invalid pointer in the trade from so when you complete trade with some one it either gave you a random item ID or crashed the server lol.
You can also send to the server some kind of guild bank authentication packet when you interact with it and then steal any item from any guild as long as you just tell the guild bank you're accessing it as some one who has privileges.
If you sell your equipped item your class gets turned into a default class with weird Korean or Chinese spells because the game changes your class based on your equipped weapon.
One time we accidentally logged into a random account messing with login auth packets, not sure how we did that.
Vendors are definitely prone to overflow, just find a vendor that sells something that had no limit on quantity and you can get all that shit for free, problem is you don't have enough bag space for the 2billion + items lol
You could swap your GUID in every packet to some one else and it would work, so... yeah.
This happened
gil suddenly dissapearing?! : ffxiv
Lol ��