IDOR Vulnerability Testing

Name: IDOR Vulnerability Testing
Availability: InStock
Author: zebbern

Identify and exploit IDOR vulnerabilities in web applications.

4.5k|458|Updated Jun 21, 2025

Search Tags:#authorization #vulnerability #access-control #web-application #security-testing #burp-suite #idor

Ready to run

npx skills add https://github.com/zebbern/claude-code-guide --skill idor-vulnerability-testing

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: IDOR Vulnerability Testing
Source: https://github.com/zebbern/claude-code-guide/tree/main/skills/idor-testing
Command: npx skills add https://github.com/zebbern/claude-code-guide --skill idor-vulnerability-testing

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This skill provides structured guidance for detecting insecure direct object reference vulnerabilities, testing access controls, and remediating issues in web applications with proper authorization.

Core Features & Use Cases

Systematic IDOR testing: Identify direct references to user data and static files, enumerate IDs, and verify access controls.
Detection to remediation: Document findings and propose fixes to enforce ownership checks and indirect references.
Use Case: Imagine testing an e-commerce app; you verify that changing a product or user ID in requests does not expose other users' data, and you report the access control bypass weaknesses with clear remediation steps.

Quick Start

Obtain explicit authorization to test the target application.
Gather two or more test user accounts and the target URLs or APIs.
Use intercepting proxies (e.g., Burp Suite) to capture and manipulate requests, then observe responses for data ownership deviations.
Document findings with evidence, classify impact, and propose remediation steps.

Frequently Asked Questions about IDOR Vulnerability Testing

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

FAQPage Schema

How do I test for IDOR vulnerabilities in a web application?▼

IDOR testing identifies insecure direct object reference flaws by manipulating request parameters like user IDs across two or more test accounts. It verifies whether changing these references exposes unauthorized data, ensuring proper access controls are enforced.

What do I need to start testing access control bypass weaknesses?▼

You need explicit authorization to test the target, valid test user accounts, and target URLs or APIs. An intercepting proxy is required to capture and manipulate HTTP requests to verify data ownership deviations across different user sessions.

How do I remediate IDOR vulnerabilities after detecting them?▼

Remediate IDOR vulnerabilities by enforcing strict data ownership checks and implementing indirect object references in your web application. You should document the access control bypass evidence and classify the impact before proposing these fixes.

Can I use Burp Suite to verify insecure direct object references?▼

Yes, Burp Suite is used to capture and manipulate HTTP requests containing direct object references. By modifying IDs or file paths and observing responses across test accounts, you verify if the application enforces proper authorization.

What are the limitations of IDOR vulnerability testing?▼

IDOR vulnerability testing requires an authorized testing scope and multiple valid test accounts. Testing outside of this approved scope is prohibited, and detecting complex access control flaws may be limited by the application's specific object reference mechanisms.