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Beginner Hint
- The reason you cannot access some pages lies in
SecurityConfig.java. - Take a close look at how the authorization rules are written. Are they correct?
Springing
Topic: AuthorizationReleased: Aug 29, 2026
A CTF challenge series with fun puzzles to enjoy every day
We regularly publish simple, beginner-friendly or educational CTF challenges!
Solve each challenge within its time window to appear on the leaderboard.
Discussion with friends or AI is welcome (account sharing is prohibited).
Sharing solutions is allowed only after the challenge period has ended.
minaminaoTry the first challenge
Is this your first CTF? Let's begin by tackling the first challenge released on Daily AlpacaHack.
tchen
hiikunz
tan90909090minaminaominaminaominaminaoWant a harder challenge?
Go to B-SIDEWriteups
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