IDOR Vulnerability Testing

Identify and test IDOR vulnerabilities by manipulating object references across API endpoints.

Updated Jan 12, 2026
One-click install
npx skills add https://github.com/jcastillotx/vibe-skeleton-app --skill idor-vulnerability-testing-jcastillotx
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: IDOR Vulnerability Testing
Source: https://github.com/jcastillotx/vibe-skeleton-app/tree/main/setup/skills/idor-testing
Command: npx skills add https://github.com/jcastillotx/vibe-skeleton-app --skill idor-vulnerability-testing-jcastillotx

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

IDOR vulnerabilities allow unauthorized access to other users' data via manipulated object references. This skill provides a structured approach to detect, verify, and remediate insecure direct object references in web applications.

Core Features & Use Cases

  • Systematic discovery across API endpoints and static file references
  • Proof-of-concept creation and remediation guidance for access-control failures
  • Safe, authorized testing workflows with clear reporting for stakeholders

Quick Start

Provide a target application URL and two test user accounts to begin IDOR testing in a controlled environment.

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 across API endpoints?

Testing for IDOR vulnerabilities requires manipulating object references in API endpoints and static files to check cross-user access. You must enumerate IDs and filenames, validate access controls, and document proof-of-concept scenarios during authorized security assessments.

What do I need to start IDOR vulnerability testing?

To begin IDOR testing, provide a target application URL and two test user accounts within a controlled environment. Standard proxy tools like Burp Suite are needed to intercept requests and manipulate object references safely.

What is the best way to document IDOR proof-of-concept for stakeholders?

Documenting IDOR proof-of-concept requires systematic risk assessment and clear reporting for stakeholders. You must record cross-user access scenarios, manipulated object references, and provide actionable remediation guidance for access-control failures.

How does insecure direct object reference manipulation work?

Insecure direct object reference manipulation alters object references in API endpoints or static file requests to access another user's data. It exploits weak access controls by modifying IDs or filenames to bypass authorization checks.

Can I use Burp Suite for IDOR enumeration and access control validation?

Yes, you can use Burp Suite or similar proxies for IDOR enumeration and access control validation. These standard tools intercept requests to manipulate object references across API endpoints and verify cross-user access scenarios.

Why does IDOR testing require two separate user accounts?

IDOR testing requires two separate user accounts to safely simulate cross-user access scenarios. Authenticating as one user and manipulating object references tied to another verifies whether access controls properly prevent unauthorized data retrieval.