offensive-xxe skillC
offensive-xxe is agent-read markdown (skill) from snailsploit/claude-red.
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.
What the file says
# SKILL: XML External Entity (XXE) Injection ## Metadata - **Skill Name**: xxe - **Folder**: offensive-xxe - **Source**: https://github.com/SnailSploit/offensive-checklist/blob/main/xxe.md ## Description XML External Entity injection testing checklist: classic XXE, blind XXE (out-of-band), XXE via file upload (SVG/docx), XXE in SOAP/REST, error-based XXE, XInclude attacks, and XXE filter bypass. Use for web app XXE testing and bug bounty. ## Trigger Phrases Use this skill when the conversation involves any of: `XXE, XML external entity, blind XXE, out-of-band XXE, XXE file upload, SVG XXE, SOAP XXE, XInclude, entity bypass, XXE SSRF, XXE file read` ## Instructions for Claude When this skill is active: 1. Load and apply the full methodology below as your operational checklist 2. Follow steps in order unless the user specifies otherwise 3. For each technique, consider applicability to the current target/context 4. Track which checklist items have been completed 5. Suggest next steps based on findings --- ## Full Methodology # XML External Entity (XXE) Injection ## Shortcut - Find data entry points that you can use to submit XML data. …
Read the whole file at its exact version.
How to install
mdr add snailsploit/claude-red/offensive-xxe@git:20260506.70e0c89mdr add snailsploit/claude-red/offensive-xxe@sha256:b56c15801faa3f30Pin 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.
[](https://markdownregistry.com/a/art_5k7zxghzl2bhsmkv)
1 badge views in 30 days
Versions
Audit of the latest version
- fail: Frontmatter block present
- fail: Frontmatter declares a name
- fail: Frontmatter declares a description
- fail: No link to a raw IP address (matched: http://169.254.169.254)
- pass: Size between 200 bytes and 200 KB (28487 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 script tag
Source
snailsploit/claude-red · 6,831 stars · license MIT · pushed 2026-09-19 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_5k7zxghzl2bhsmkv GET https://markdownregistry.com/api/v1/resolve?ref=snailsploit/claude-red/offensive-xxe GET https://markdownregistry.com/api/v1/blob/b56c15801faa3f3046d86071cab344fdda55dd97de266b06ed0bbaae54659685
Your agent 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.
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