offensive-xxe skillA
offensive-xxe is agent-read markdown (skill) from miosa-osa/osa: 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..
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` <!-- progressive-disclosure --> ## Methodology references Read the relevant sections below before following a technique. Read them in order for the complete original methodology. Confirm the target and testing scope with the user before performing any active checks. - [Full Methodology](references/methodology-01.md) — part 1; consult for this stage and its examples. - [Parameter Entity Testing](references/methodology-02.md) — part 2; consult for this stage and its examples. …
Read the whole file at its exact version.
How to install
mdr add miosa-osa/osa/offensive-xxe@git:20260914.92db90amdr add miosa-osa/osa/offensive-xxe@sha256:2f00716a31e3d462Pin 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_e5hbu4qtudh57wjs)
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Versions
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260914.92db90a latest | 2026-09-14 | 92db90a | 1,921 B | A | view · diff |
| git:20260913.e13b6b8 | 2026-09-13 | e13b6b8 | 29,488 B | B | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (1921 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
miosa-osa/osa · 74 stars · license NOASSERTION · pushed 2026-09-24 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_e5hbu4qtudh57wjs GET https://markdownregistry.com/api/v1/resolve?ref=miosa-osa/osa/offensive-xxe GET https://markdownregistry.com/api/v1/blob/2f00716a31e3d462ae15e3df9299612e677f738a117c8221e8e38b27117ffc2d
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