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2026-02-28
JWT
Easy
WHAMazon! JWT 2 - Forge
Exploiting the JWT 'none' algorithm vulnerability to forge an unsigned admin token without knowing the signing secret.
jwt
none-algorithm
algorithm-confusion
token-forgery
2026-02-28
JWT
Easy
WHAMazon! JWT 1 - WHAM Token
Extracting a JWT signing key from a netcat service, forging an admin token with jwt.io, and submitting it to gain elevated access and retrieve the flag.
jwt
hs256
token-forgery
privilege-escalation