Vulnerability Validation

This is a bundled local Bug Hunter companion skill. It strengthens the security-specific parts of the Skeptic/Referee process.

Purpose

Take suspected or confirmed security findings and answer:

• Is the vulnerable path reachable?
• Can an attacker control the input?
• Are there existing mitigations?
• How exploitable is it really?
• What is the CVSS / PoC / impact level?

Inputs

Prefer Bug Hunter-native artifacts:

• .bug-hunter/hunter-findings.json
• .bug-hunter/threat-model.md
• .bug-hunter/security-config.json
• .bug-hunter/dep-findings.json when dependency issues are involved

Workflow

1. Read the findings and isolate the security ones.
2. Trace reachability:
   • EXTERNAL
   • AUTHENTICATED
   • INTERNAL
   • UNREACHABLE
3. Trace exploitability:
   • EASY
   • MEDIUM
   • HARD
   • NOT_EXPLOITABLE
4. Check for mitigations already present in code, framework behavior, or deployment assumptions.
5. For confirmed HIGH/CRITICAL security bugs, generate:
   • exploitation path
   • benign proof of concept
   • CVSS vector + score
6. Feed the result back into Bug Hunter-native verdicting.

Outputs

When used as a companion to the main pipeline, keep outputs compatible with:

• .bug-hunter/referee.json
• .bug-hunter/report.md

If a separate validation artifact is helpful for the run, place it under .bug-hunter/validated-findings.json.

Important constraints

• This skill validates findings; it does not replace the normal fix pipeline.
• Keep outputs portable and self-contained under .bug-hunter/.
• Prefer explicit reasoning for false positives so the user can trust dismissals.