The ExpressPay stored-value card system used by FedEx Kinko’s is vulnerable to attack. An attacker who gains the ability to alter the data stored on the card can use FedEx Kinko’s services fraudulently and anonymously, and can even obtain cash from the store.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/44284/FedExKinkos.txt
Source: https://packetstormsecurity.com/files/44284/FedExKinkos.txt.html