Agent skill · security · davila7
IDOR Vulnerability Testing
This skill should be used when the user asks to "test for insecure direct object references," "find IDOR vulnerabilities," "exploit broken access control," "enumerate user IDs or object references," or "bypass authorization to access other users' data." It provides comprehensive guidance for detecting, exploiting, and remediating IDOR vulnerabilities in web applications.
Why this skill is useful
Provides detailed methodologies and techniques for detecting and exploiting IDOR vulnerabilities that the AI wouldn't reliably generate on its own.
What it needs
Requires burp suite installed locally. About 7k tokens when loaded. Last updated 2026-08-06. 30,138 stars on the source repository.
What this skill does
IDOR Vulnerability Testing Purpose Provide systematic methodologies for identifying and exploiting Insecure Direct Object Reference (IDOR) vulnerabilities in web applications. This skill covers both database object references and static file references, detection techniques using parameter manipulation and enumeration, exploitation via Burp Suite, and remediation strategies for securing applications against unauthorized access. Inputs / Prerequisites Target Web Application: URL of application with user-specific resources Multiple User Accounts: At least two test accounts to verify cross-user access Burp Suite or Proxy Tool: Intercepting proxy for request manipulation Authorization: Written permission for security testing Understanding of Application Flow: Knowledge of how objects are referenced (IDs, filenames) Outputs / Deliverables IDOR Vulnerability Report: Documentation of discovered access control bypasses Proof of Concept: Evidence of unauthorized data access across user contexts Affected Endpoints: List of vulnerable API endpoints and parameters Impact Assessment: Classification of data exposure severity Remediation Recommendations: Specific fixes for identified vulnerabilities Core Workflow 1. Understand IDOR Vulnerability Types Direct Reference to Database Objects Occurs when applications reference database records via user-controllable parameters: Direct Reference to Static Files Occurs when applications expose file paths or names that can be enumerated: 2. Reconnaissance and Setup Create Multiple Test Accounts Identify Object References Capture and analyze requests containing: Numeric IDs in URLs: /api/user/123 Numeric IDs in parameters: ?id=123&action=view Numeric IDs in request body: {"userId": 123} File paths: /download/receipt123.pdf GUIDs/UUIDs: /profile/a1b2c3d4-e5f6-... Map User IDs 3. Detection Techniques URL Parameter Manipulation Request Body Manipulation HTTP Method Switching 4. …
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills davila7/idor-testing