403-bypass

What problem does it solve?

This Skill solves the problem of being blocked by 403/401 access control errors from WAFs, reverse proxies, or CDNs when attempting to reach legitimate internal or admin endpoints that are restricted at the edge security layer rather than the application layer.

Core Features & Use Cases

• Systematic Bypass Techniques: Covers path manipulation, header spoofing, HTTP verb tampering, and protocol-level tricks ordered by real-world effectiveness to evade edge access controls.
• Triage & Signal Analysis: Includes steps to identify if a 403 originates from the WAF/proxy layer or application code, and interpret response status, size, and timing signals to refine testing.
• Use Case: For penetration testers and red teamers conducting authorized web application security assessments, this Skill automates methodical testing of 403/401 blocks to identify misconfigured edge security rules.

Quick Start

Use the 403-bypass skill to systematically test a blocked /admin endpoint on your authorized target web application to identify potential WAF or proxy access control bypass opportunities.