Flags

In most CTFs, the objective is to extract a flag value from a challenge. Often by exploiting some kind of security vulnerability or by knowing some property of computers. Flags are sort of the proof that you accomplished the task.

In order for a user to receive points for a challenge, they must submit the corresponding flag. CTFd allows admins to create different types of flags for each challenge.

A breakdown of the different flag types available in CTFd can be found in the Flags section