unboundcompute/security-agent-skills · skills/hunting-mass-assignment-and-property-authz/SKILL.md

hunting-mass-assignment-and-property-authz skillA

hunting-mass-assignment-and-property-authz is agent-read markdown (skill) from unboundcompute/security-agent-skills: Hunt mass assignment and broken object-property authorization: handlers that bind a client request payload straight onto a record or model and let the caller write fields it should never control - role, is_admin, owner_id, tenant, price, balance, verified, status, or another user's foreign key. Covers auto-binding and hydration that take the whole payload, blocklist filters that miss a field, nested and relation fields that reopen the hole, type juggling that flips a flag, and read paths that re.

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 unboundcompute/security-agent-skills/hunting-mass-assignment-and-property-authz@git:20260819.0218064
Exact content
mdr add unboundcompute/security-agent-skills/hunting-mass-assignment-and-property-authz@sha256:475f5a95f8e7bd97

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_gbuzzi273ieoet37.svg)](https://markdownregistry.com/a/art_gbuzzi273ieoet37)

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Versions

versioncommittedcommitsizeaudit
git:20260819.0218064 latest2026-08-19 0218064 8,770 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 (8770 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

unboundcompute/security-agent-skills · 5 stars · license MIT · pushed 2026-09-08 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_gbuzzi273ieoet37
GET https://markdownregistry.com/api/v1/resolve?ref=unboundcompute/security-agent-skills/hunting-mass-assignment-and-property-authz
GET https://markdownregistry.com/api/v1/blob/475f5a95f8e7bd97084708d5738406a9805806aae6475a076aebb223c2f42ea2

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