auth-bypass

Test authentication bypass and access-control weaknesses across API endpoints.

5|3|Updated Apr 10, 2026
One-click install
npx skills add https://github.com/zebbern/termstack --skill auth-bypass-zebbern
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: auth-bypass
Source: https://github.com/zebbern/termstack/tree/main/.github/skills/auth-bypass
Command: npx skills add https://github.com/zebbern/termstack --skill auth-bypass-zebbern

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Auth-bypass and broken access control allow attackers to access sensitive data, escalate privileges, and compromise application integrity.

Core Features & Use Cases

  • Structured testing workflows for authentication bypass, IDOR discovery, JWT manipulation, and session management.
  • Practical attack patterns and test recipes to verify RBAC enforcement and token validation across APIs and web interfaces.
  • Safe, documented testing in a lab environment to avoid unintended production impact.

Quick Start

Start by running JWT and session-validation tests against your API endpoints to verify proper access controls.

Frequently Asked Questions about auth-bypass

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I test for IDOR and authentication bypass vulnerabilities in web APIs?

To test for IDOR and authentication bypass, apply structured testing workflows against your API endpoints to uncover horizontal and vertical privilege gaps. This involves manipulating JWTs and session tokens to verify RBAC enforcement and access controls.

What is JWT manipulation and how does it uncover broken access control?

JWT manipulation is a technique that modifies session tokens to test token validation logic. By altering token payloads across API endpoints, you can safely identify authentication bypass weaknesses and verify if proper session management and access controls are enforced.

Can I safely test access control and RBAC enforcement without altering production data?

Yes, you can safely test RBAC enforcement using repeatable test patterns in a lab environment. This approach validates token verification and discovers IDOR vulnerabilities through documented testing workflows without causing unintended production impact.

How do I check for horizontal and vertical privilege escalation in web services?

To check for horizontal and vertical privilege escalation, apply IDOR and session-management scenarios across web interfaces. This process uses practical attack patterns to verify whether users can access resources or roles outside their intended permissions.

What is the best way to verify session management and token validation across endpoints?

The best way to verify session management and token validation is to run structured JWT tests against your API endpoints. This method logs findings and applies repeatable test patterns to confirm that access-control weaknesses are identified without altering live data.