This is w.r.t. http://onetimeurls.databasement.net/index.php
As always, the developers think their code is bullet proof and actually it contains basic flaws. (No offence meant, I'm just being philosophical).
Here is the POC on how to break it.
Paste the following into the textarea on the above page,
And it will break the protection.
As you would have correctly guessed, the...