such a "simple" flaw, and "old" in the sense that this kind of thing has been around. Which is WHY learning all the "old" stuff is still good practice. Teaches you mindset and well..sometimes people miss that old as hell flaw in a new implementation. Which is ofc part of why security is so damn hard. You have to protect against every hack EVER found...and then you know try to stop new ones. Anyway surprised i didnt hear about this before this, but thanks for the share