miosa-osa/osa · priv/skills/offensive-ssti/SKILL.md

offensive-ssti skillF

offensive-ssti is agent-read markdown (skill) from miosa-osa/osa: Dense description covering Server-Side Template Injection across Jinja2, Twig, Freemarker, Velocity, Pebble, Smarty, Mako, Handlebars, ERB, Thymeleaf, EJS, Pug. Engine fingerprinting, filter bypass, blind exploitation, WAF evasion, SSTI-to-RCE chains. Tools: tplmap. CWE-1336. MITRE T1190. Use when testing template rendering endpoints or exploiting template injection for code 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 miosa-osa/osa/offensive-ssti@git:20260913.e13b6b8
Exact content
mdr add miosa-osa/osa/offensive-ssti@sha256:f38b5c7ea35f8e33

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_hspzmlq763kdbc67.svg)](https://markdownregistry.com/a/art_hspzmlq763kdbc67)

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Versions

versioncommittedcommitsizeaudit
git:20260913.e13b6b8 latest2026-09-13 e13b6b8 24,071 BF view

Audit of the latest version

F  15 of 17 checks passed. Deterministic, no model, same answer every run.
  • FAIL, critical: No link to an exfiltration or paste host (matched: http://UNIQUE.oastify.com)
  • fail: No link to a raw IP address (matched: http://169.254.169.254)
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (24071 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • 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

GitHub

miosa-osa/osa · 57 stars · license NOASSERTION · pushed 2026-09-14 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_hspzmlq763kdbc67
GET https://markdownregistry.com/api/v1/resolve?ref=miosa-osa/osa/offensive-ssti
GET https://markdownregistry.com/api/v1/blob/f38b5c7ea35f8e33fbbaa690194bccc57917b99237d7d82349cf1b590252d106

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