hunt-idor SKILL.md skillB
hunt-idor from novaestellar/novahaku is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add novaestellar/novahaku/hunt-idor@git:20260910.546fe86Pins git:20260910.546fe86 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- B, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- novaestellar/novahaku
- Path
testing/hunt/hunt-idor/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260910.546fe86, committed Sep 10, 2026
- First version recorded
- Sep 3, 2026
- Size
- 21,474 bytes
- Repository stars
- 28
- License
- MIT
Hunting skill for idor vulnerabilities. Built from 26 public bug bounty reports. Use when hunting idor on any target.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
## Crown Jewel Targets
**Why IDOR pays big:**
- Direct access to other users' data without authentication bypass — clear, demonstrable impact
- Chains easily with privilege escalation, financial fraud, and account takeover
- Affects virtually every application with user-owned resources
**Highest-value asset types (by payout potential):**
| Asset Type | Why It Pays |
|---|---|
| Financial documents / billing APIs | PII + financial data exposure (Shopify, Uber, PayPal) |
| Private repositories / source code | IP theft, critical data loss (GitHub) |
| User messages / DMs | Privacy violation at scale (Reddit) |
| Account management endpoints | User addition, deletion, privilege escalation (PayPal, Mozilla) |
| Business/org administration | Cross-tenant escalation, employee PII (Uber) |
| Content moderation/admin actions | Operational sabotage (Reddit mod logs) |
**Programs that pay most for IDOR:**
- Platforms with multi-tenancy (SaaS, B2B tools)
- Fintech and payment processors
- Social platforms with private content
- Developer tools with org/repo isolation
---
## Attack Surface Signals
**URL patterns that scream IDOR:**
```
/api/v1/users/{id}/
/api/v*/orders/{order_id}
…Read the whole file at its exact version.
How to install
mdr add novaestellar/novahaku/hunt-idor@sha256:bfb3fe0f63e88dc6The line at the top of this page pins the label git:20260910.546fe86, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_2cq5lz6qcfazlvwp)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Sep 3, 2026 and Sep 10, 2026, about one every 3 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260910.546fe86 latest | 2026-09-10 | 546fe86 | 21,474 B | B | view · diff |
| git:20260903.29924dd | 2026-09-03 | 29924dd | 21,486 B | B | view · diff |
| git:20260903.fa855c4 | 2026-09-03 | fa855c4 | 21,457 B | B | view |
Audit of the latest version
- fail: No script tag (matched: <script)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (21474 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
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
novaestellar/novahaku · 28 stars · license MIT · pushed 2026-09-28 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_2cq5lz6qcfazlvwp GET https://markdownregistry.com/api/v1/resolve?ref=novaestellar/novahaku/hunt-idor GET https://markdownregistry.com/api/v1/blob/bfb3fe0f63e88dc6c58221e64d769e59822f6fee9ec5f183cdd76bc3ea818d89
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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