hunting-server-side-and-edge-side-includes SKILL.md skillA
hunting-server-side-and-edge-side-includes from unboundcompute/security-agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add unboundcompute/security-agent-skills/hunting-server-side-and-edge-side-includes@git:20260903.6dac719Pins git:20260903.6dac719 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- unboundcompute/security-agent-skills
- Path
skills/hunting-server-side-and-edge-side-includes/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260903.6dac719, committed Sep 3, 2026
- Size
- 9,993 bytes
- Repository stars
- 26
- License
- MIT
Hunt server-side include and edge-side include injection, where untrusted input is reflected into a document that a processor later interprets for include and exec directives. When an origin server has server-side includes enabled, a reflected directive can read a server file or run a command. When a cache, content-delivery network, or proxy in front of the origin parses edge-side include tags, a reflected tag can fetch an internal URL for server-side request forgery, poison a shared cache, or…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Hunting server-side and edge-side includes: when a directive is reflected Two different tiers can turn reflected text into an executed directive. On the origin, a server with server-side includes enabled scans documents for directives and will read a file or run a command when it finds one, so untrusted input reflected into such a document and interpreted as a directive becomes file disclosure or command execution. At the edge, a cache, content-delivery network, or reverse proxy may parse edge-side include tags in responses and act on them, fetching a URL, splicing a fragment, or reading a request variable, so a reflected tag becomes server-side request forgery into the internal network, a poisoned shared cache, or a page that copies the victim's cookie back to the attacker. The edge variant is insidious: the application developer never wrote include handling and cannot see it in the origin code, because a separate tier performs it. You find both by locating reflection into processed documents and determining which processor sits in the path. ## When to use - Untrusted input is reflected into a page, template, or fragment served by an include-capable server. …
Read the whole file at its exact version.
How to install
mdr add unboundcompute/security-agent-skills/hunting-server-side-and-edge-side-includes@sha256:802c1d988ca12f63The line at the top of this page pins the label git:20260903.6dac719, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_3jhlqn7b6x2eyddk)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Sep 3, 2026.
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 (9993 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
unboundcompute/security-agent-skills · 26 stars · license MIT · pushed 2026-09-08 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_3jhlqn7b6x2eyddk GET https://markdownregistry.com/api/v1/resolve?ref=unboundcompute/security-agent-skills/hunting-server-side-and-edge-side-includes GET https://markdownregistry.com/api/v1/blob/802c1d988ca12f63116b9eb9d10dad6ca836d7eda896659b5ce8276986bd2b36
Your AI assistant 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.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.