IDOR Detection

by utkusen

IDOR Detection is a Quality skill for Claude Code, published by utkusen in sast-skills.

1.3K stars61 forkson utkusen/sast-skillsAdded 2026/07/14Repository updated 2026/04/08

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ai-securityclaudeclaude-codesast

Install in seconds

Install IDOR Detection

Copy IDOR Detection into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/utkusen/sast-skills/tree/main/sast-files/.claude/skills/sast-idor ~/.claude/skills/sast-idor

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/utkusen/sast-skills.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: sast-files/.claude/skills/sast-idor/SKILL.md in utkusen/sast-skills
Installs to: ~/.claude/skills/sast-idor
Collection: One of 17 skills cataloged from this repository
Category: Quality — 1897 skills

What IDOR Detection does

Detect IDOR vulnerabilities by identifying endpoints lacking ownership checks, using automated recon, parallel batch verification, and merge. Ideal for code security audits targeting authorization bypass.

IDOR Detection is cataloged under Quality on DirSkills. IDOR Detection comes from a repository tagged ai-security, claude, claude-code and sast.

Documentation

README

Excerpt

IDOR (Insecure Direct Object Reference) Detection

You are performing a focused security assessment to find IDOR vulnerabilities in a codebase. This skill uses a three-phase approach with subagents: recon (find candidate endpoints), batched verify (check authorization in parallel batches of 3), and merge (consolidate results).

Prerequisites: sast/architecture.md must exist. Run the analysis skill first if it doesn't.

What is IDOR

IDOR occurs when an application uses a user-supplied identifier (ID, slug, filename, etc.) to directly access an object without verifying the requesting user is authorized to access that specific object. The application authenticates the user but fails to check ownership or permissions on the requested resource.

This is the opening of the README. Read the full README on GitHub.

Frequently asked about IDOR Detection

What else does utkusen publish alongside IDOR Detection?
IDOR Detection is one of 17 skills that DirSkills catalogs from utkusen/sast-skills, the repository it ships in. Its siblings there include Business Logic Vulnerability Detection, Cross-Site Scripting Detection and GraphQL Injection Detection. Each one is a separate skill with its own page in this directory, installs the same way IDOR Detection does, and is maintained by utkusen in that same repository. The rest of the collection is listed on the utkusen/sast-skills page.
How does IDOR Detection compare to other Quality skills?
IDOR Detection ranks #714 by stars among the 1897 Quality skills in this catalog. The most-starred ones next to it are Benchmark, Benchmark Optimization Loop and API Design Patterns. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of IDOR Detection against them. Open each page to compare what they document and how they install.