Monster333 is designed for authorized security testing only — bug bounty programs with published scope, engagements with written permission, or your own/lab infrastructure. Any other use is illegal in most jurisdictions.

Found a bug or security issue in this codebase?

1. Open a GitHub issue with details and a reproduction.
2. For sensitive reports, contact the maintainer via the community Discord: https://discord.gg/XAu8PdDeeT

Please do not test the tool against systems you do not own.

• Scope engine fails closed (explicit target allowlist only).
• No destructive payloads; all probes are request mutations.
• Default request budget and hard ceiling.
• Self-contained smuggling probes (no cross-user traffic).