Hacker101 Encrypted Pastebin Jun 2026

[Hacker101 CTF] Encrypted Pastebin – [Vulnerability Type]

If you change the IV or ciphertext, the client-side JS will try to decrypt it using your password – but here’s the trick: The attacker doesn’t need to know the original password. You just need to craft a ciphertext that, when decrypted with any password, yields a useful plaintext. hacker101 encrypted pastebin

The challenge gifts you the ability to modify the URL parameters: ?id=...&iv=...&data=... when decrypted with any password