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testing-for-open-redirect-vulnerabilities
90 / 100 · Low risk
Fine to try. Some of what it can do is expected: a security skill usually runs scanners and checks websites.
By mukul975/Anthropic-Cybersecurity-Skills (GitHub) · security · 35,906 stars · scanned at commit 54a7988
Identifies and exploits open redirect vulnerabilities by analyzing URL
Works with any agent that supports SKILL.md skills.
What this skill can do
Sends data to these websites: target.com, evil.com, target.com@evil.com, evil.com%00.target.com, target.com.evil.com
The author does not mention this. Expected for a security skill.
Found in 25 places.
Show 17 more
- skills/testing-for-open-redirect-vulnerabilities/SKILL.md, line 74
curl -v "http://target.com/redirect?url=https://evil.com" - skills/testing-for-open-redirect-vulnerabilities/SKILL.md, line 77
curl -v "http://target.com/redirect?url=//evil.com" - skills/testing-for-open-redirect-vulnerabilities/SKILL.md, line 80
curl -v "http://target.com/redirect?url=https://target.com@evil.com" - skills/testing-for-open-redirect-vulnerabilities/SKILL.md, line 83
curl -v "http://target.com/redirect?url=https://evil.com\@target.com" - skills/testing-for-open-redirect-vulnerabilities/SKILL.md, line 86
curl -v "http://target.com/redirect?url=https://evil.com%00.target.com" - skills/testing-for-open-redirect-vulnerabilities/SKILL.md, line 92
curl -v "http://target.com/redirect?url=https://target.com.evil.com" - skills/testing-for-open-redirect-vulnerabilities/SKILL.md, line 93
curl -v "http://target.com/redirect?url=https://evil.com/target.com" - skills/testing-for-open-redirect-vulnerabilities/SKILL.md, line 96
curl -v "http://target.com/redirect?url=https%3A%2F%2Fevil.com" - skills/testing-for-open-redirect-vulnerabilities/SKILL.md, line 97
curl -v "http://target.com/redirect?url=%68%74%74%70%73%3a%2f%2f%65%76%69%6c%2e%63%6f%6d" - skills/testing-for-open-redirect-vulnerabilities/SKILL.md, line 100
curl -v "http://target.com/redirect?url=%2568%2574%2574%2570%253A%252F%252Fevil.com" - skills/testing-for-open-redirect-vulnerabilities/SKILL.md, line 103
curl -v "http://target.com/redirect?url=HtTpS://evil.com" - skills/testing-for-open-redirect-vulnerabilities/SKILL.md, line 106
curl -v "http://target.com/redirect?url=%0d%0aLocation:%20https://evil.com" - skills/testing-for-open-redirect-vulnerabilities/SKILL.md, line 109
curl -v "http://target.com/redirect?url=javascript:alert(document.domain)" - skills/testing-for-open-redirect-vulnerabilities/SKILL.md, line 112
curl -v "http://target.com/redirect?url=data:text/html,<script>alert(1)</script>" - skills/testing-for-open-redirect-vulnerabilities/SKILL.md, line 118
curl -v "http://target.com/redirect?url=/\evil.com" - skills/testing-for-open-redirect-vulnerabilities/SKILL.md, line 119
curl -v "http://target.com/redirect?url=/.evil.com" - skills/testing-for-open-redirect-vulnerabilities/SKILL.md, line 122
curl -v "http://target.com/redirect?url=/../../../evil.com"
and 5 more places
Runs commands on your computer
The author does not mention this. Expected for a security skill.
Found in 6 places.
Show 3 more
Install
Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.
if [ -e ~/.agents/skills/'testing-for-open-redirect-vulnerabilities' ] || [ -L ~/.agents/skills/'testing-for-open-redirect-vulnerabilities' ]; then echo 'A skill folder named testing-for-open-redirect-vulnerabilities already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/mukul975/Anthropic-Cybersecurity-Skills' "$d" && git -C "$d" checkout --quiet '54a798831d2266a3ca61ce68a7acb80b81160d57' -- 'skills/testing-for-open-redirect-vulnerabilities' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/testing-for-open-redirect-vulnerabilities' ~/.agents/skills/'testing-for-open-redirect-vulnerabilities' && rm -rf "$d"; fi
Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'testing-for-open-redirect-vulnerabilities' ~/.claude/skills/'testing-for-open-redirect-vulnerabilities' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.
Badge for your README
The badge for mukul975/Anthropic-Cybersecurity-Skills shows the score of its lowest-scoring skill.
[](https://zalavijaysinh.github.io/skilltrust/repos/mukul975/Anthropic-Cybersecurity-Skills/)
Score history
| Date | Version | Score |
|---|
| 2026-11-08 | 54a7988 | 90 |
| 2026-11-07 | 54a7988 | 90 |