dreadnode/capabilities · capabilities/web-security/skills/csp-bypass/SKILL.md

csp-bypass skillF

csp-bypass is agent-read markdown (skill) from dreadnode/capabilities: Bypass Content-Security-Policy to achieve XSS when CSP blocks inline scripts. Covers JSONP gadgets, framework abuse (Angular/HTMX/Alpine), missing directive exploitation, and nonce/hash weaknesses. Use when you have HTML injection but CSP prevents script execution..

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 dreadnode/capabilities/csp-bypass@git:20260504.2a64374
Exact content
mdr add dreadnode/capabilities/csp-bypass@sha256:44fc614b4ac8f88e

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_gwessdnybzkvwris.svg)](https://markdownregistry.com/a/art_gwessdnybzkvwris)

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Versions

versioncommittedcommitsizeaudit
git:20260504.2a64374 latest2026-05-04 2a64374 10,715 BF view

Audit of the latest version

F  15 of 17 checks passed. Deterministic, no model, same answer every run.
  • FAIL, critical: No text hidden with inline styles (matched: style="opacity:0)
  • 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 (10715 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 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

Source

GitHub

dreadnode/capabilities · 15 stars · license none · pushed 2026-09-18 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_gwessdnybzkvwris
GET https://markdownregistry.com/api/v1/resolve?ref=dreadnode/capabilities/csp-bypass
GET https://markdownregistry.com/api/v1/blob/44fc614b4ac8f88ef2118ff49bbdc2d4283a60f1601af03fa4218da4004e48ce

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