CyberAbeer CTF
CyberAbeer CTF is a set of standalone, technical capture-the-flag challenges: find the flag, prove the exploit, submit the answer. It sits alongside Decision Labs as a more hands-on, technical track for learners who want to go deeper into a specific technique.
Web Exploitation
Hidden in Plain Sight
BeginnerRead the raw HTML of a staff login page, find a hidden staging path, then read that page's source too.
Broken Access Control
IntermediateEnumerate the admin's user ID through a search endpoint, then use it against a billing API that trusts whatever ID it's given.
Forensics
Suspicious Log
BeginnerFind the one log line that doesn't belong, confirm which IP sent it, then decode its hidden header.
The Deleted File
IntermediatePick the right recovered fragment out of three candidates, then read its full ASCII column to reconstruct a "deleted" flag.
Cryptography
Caesar's Mistake
BeginnerRecover the shift from a known-plaintext crib, then use that same shift to decode the full flag.
The Weak Key
IntermediateCall out a false claim of "encryption", find the real config key, then peel back two stacked encodings to recover the flag.