zebbern/claude-code-guide · skills/idor-testing/SKILL.md

idor-testing skillA

idor-testing is agent-read markdown (skill) from zebbern/claude-code-guide: 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..

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add zebbern/claude-code-guide/idor-testing@v1.1
Exact content
mdr add zebbern/claude-code-guide/idor-testing@sha256:6f7c16c24bdf8bf5

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_hbwtpi2fm2nmpeu7.svg)](https://markdownregistry.com/a/art_hbwtpi2fm2nmpeu7)

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Versions

versioncommittedcommitsizeaudit
v1.1 latest2026-05-31 164971d 12,589 BA view · diff
v1.12026-01-20 27bf883 12,603 BA view · diff
git:20260104.9174e172026-01-04 9174e17 12,558 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (12589 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

zebbern/claude-code-guide · 4,627 stars · license MIT · pushed 2026-09-18 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_hbwtpi2fm2nmpeu7
GET https://markdownregistry.com/api/v1/resolve?ref=zebbern/claude-code-guide/idor-testing
GET https://markdownregistry.com/api/v1/blob/6f7c16c24bdf8bf5e95b825c8df105a21851a943705563bde553a908f9963754

Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.