So this happened. Normally you'd look at it and say "wow it's fucking nothing," but it was my class that discovered it. It was discovered by a guy in our class who had no idea what he was doing (not dumb by any means, but maybe in the wrong field), during our NTFS and File Share Permissions chapter. The "unique and very specific URL code" was just removing your student# from the filerserver/users/student# directory when mapping a drive. He discovered it when he was trying to map his drive but forgot to put in his #.
It gave us access to all of the student, and some teacher, folders. We could read and download the documents to our own computers. We could create new folders. There were a couple of test-key folders on there (not for our classes, sadly). It took them two weeks to fix it.
Quality.