galact-byte/galact-skills · skills/hunt-prototype-pollution/SKILL.md

hunt-prototype-pollution skillA

hunt-prototype-pollution is agent-read markdown (skill) from galact-byte/galact-skills: 在授权渗透测试中挖掘 JavaScript 原型污染（prototype pollution，服务端 Node.js 与客户端）。当目标把用户可控的键名递归合并进对象（merge/extend/set/clone、JSON body、query 解析）时使用——典型场景：用 `__proto__`/`constructor.prototype` 注入属性，污染全局原型，进而 DoS、改逻辑、配合 gadget 提权到 XSS/RCE。适用目标类型 Web / REST API（Node.js） / 前端。触发场景包括用户说"测下原型污染""这个 merge 能不能 __proto__""污染原型打 RCE/XSS""lodash/jquery 有没有污染点"。输出：污染点 + 可用 gadget 判定 + 反射证据的 finding（含 killed 记录）。.

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 galact-byte/galact-skills/hunt-prototype-pollution@git:20260806.1b94651
Exact content
mdr add galact-byte/galact-skills/hunt-prototype-pollution@sha256:2a831ff5e187e367

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.

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Versions

versioncommittedcommitsizeaudit
git:20260806.1b94651 latest2026-08-06 1b94651 4,134 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 (4134 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

galact-byte/galact-skills · 6 stars · license NOASSERTION · pushed 2026-09-09 · branch master

API

GET https://markdownregistry.com/api/v1/artifacts/art_wp6at4xjzwyxpx7h
GET https://markdownregistry.com/api/v1/resolve?ref=galact-byte/galact-skills/hunt-prototype-pollution
GET https://markdownregistry.com/api/v1/blob/2a831ff5e187e36797a1947cbe5c98e758aab358736cec8b1ffc3f712bf7f7f8

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