server-side
Server-side vulnerability testing - SSRF, HTTP Request Smuggling, Path Traversal, File Upload, Insecure Deserialization, and Host Header injection.
- Installs
- 199
- Last 24h
- —
- Trending rank
- —
- Security
- Not audited
Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/transilienceai/communitytools --skill server-side- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads server-side automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
SKILL.md
The instructions your agent reads when the skill is triggered.
Server-Side
Test for server-side vulnerabilities that allow unauthorized access, RCE, or data exfiltration.
Techniques
| Type | Key Vectors |
|---|---|
| SSRF | Internal service access, cloud metadata, protocol smuggling |
| HTTP Smuggling | CL.TE, TE.CL, TE.TE, CL.0, H2.CL, h2c, multi-layer proxy chains, connection pooling desync |
| Path Traversal | Directory traversal, null bytes, encoding bypass |
| File Upload | Extension bypass, content-type manipulation, polyglot files |
| Deserialization | Java, PHP, Python, .NET gadget chains |
| Host Header | Password reset poisoning, cache poisoning, routing-based SSRF |
| CUPS / cups-browsed | CVE-2024-47076/47175/47176/47177 — UDP browse → IPP injection → PPD injection → foomatic-rip RCE (see skills/infrastructure/reference/scenarios/network-recon/cups-browsed-rce.md) |
Workflow
- Identify server-side processing points
- Test for vulnerability class indicators
- Bypass protections (WAF, allowlists, encoding filters)
- Demonstrate impact (file read, RCE, internal access)
- Capture evidence with PoC
Reference
reference/scenarios/ssrf/*.md- SSRF techniques and labsreference/http-request-smuggling*.md- Smuggling techniquesreference/scenarios/path-traversal/*.md- Path traversal bypass methodsreference/file-upload*.md- File upload exploitationreference/insecure-deserialization*.md- Deserialization attacksreference/http-host-header*.md- Host header injectionskills/infrastructure/reference/scenarios/network-recon/cups-browsed-rce.md- CUPS RCE chain (CVE-2024-47076/175/176/177); ipptool false positives vs libcups runtime parser; ippserver Python lib version-1.1 hardcode bug
FAQ
What does the server-side skill do?
Server-side vulnerability testing - SSRF, HTTP Request Smuggling, Path Traversal, File Upload, Insecure Deserialization, and Host Header injection.
How do I install server-side?
Run npx skills add https://github.com/transilienceai/communitytools --skill server-side in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/server-side/ (personal) or .claude/skills/server-side/ (project).
Which AI agents can use server-side?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is server-side safe to install?
No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.
Who maintains server-side?
It is published by transilienceai in transilienceai/communitytools. It has 199 recorded installs.
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