Penetration Testing
JWT Fuzzer
Test JWT security by manipulating tokens, testing algorithm confusion attacks, and exploring common JWT vulnerabilities.
Ethical Use Only: This tool is for authorized security testing and educational purposes. Test only on systems you own or have permission to test.
Common JWT Vulnerabilities: Algorithm confusion (none attack), weak signing keys, missing signature verification, expired token acceptance, and insufficient claim validation. Always verify signatures server-side and use strong algorithms like RS256 or ES256.