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performing-web-cache-poisoning-attack
77 / 100 · Review before installing
Check before installing. 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
Exploiting web cache mechanisms to serve malicious content to other users
Works with any agent that supports SKILL.md skills.
What this skill can do
Sends data to these websites: target.example.com
This is disclosed by the author in the skill's SKILL.md or README. Expected for a security skill.
Found in 31 places.
Show 17 more
- skills/performing-web-cache-poisoning-attack/SKILL.md, line 79
curl -s -I "https://target.example.com/" | grep -i "vary" - skills/performing-web-cache-poisoning-attack/SKILL.md, line 108
curl -s -H "X-Forwarded-Host: evil.example.com" \ - skills/performing-web-cache-poisoning-attack/SKILL.md, line 112
curl -s -H "X-Forwarded-Scheme: nothttps" \ - skills/performing-web-cache-poisoning-attack/SKILL.md, line 116
curl -s -H "X-Original-URL: /admin" \ - skills/performing-web-cache-poisoning-attack/SKILL.md, line 120
curl -s -H "X-Forwarded-Proto: http" \ - skills/performing-web-cache-poisoning-attack/SKILL.md, line 134
curl -s -H "X-Forwarded-Host: evil.example.com" \ - skills/performing-web-cache-poisoning-attack/SKILL.md, line 140
curl -s -H "X-Forwarded-Host: evil.example.com" \ - skills/performing-web-cache-poisoning-attack/SKILL.md, line 144
curl -s "https://target.example.com/" | grep "evil.example.com" - skills/performing-web-cache-poisoning-attack/SKILL.md, line 148
curl -s -H "X-Forwarded-Proto: http" \ - skills/performing-web-cache-poisoning-attack/SKILL.md, line 153
curl -s \ - skills/performing-web-cache-poisoning-attack/SKILL.md, line 174
curl -s -H "Authorization: Bearer $VICTIM_TOKEN" \ - skills/performing-web-cache-poisoning-attack/SKILL.md, line 179
curl -s "https://target.example.com/account/profile/test.css" - skills/performing-web-cache-poisoning-attack/SKILL.md, line 185
curl -s -H "Authorization: Bearer $TOKEN" \ - skills/performing-web-cache-poisoning-attack/SKILL.md, line 204
curl -s "https://target.example.com/?utm_content=<script>alert(1)</script>&cb=$(date +%s)" | \ - skills/performing-web-cache-poisoning-attack/SKILL.md, line 209
curl -s "https://target.example.com/jsonp?callback=alert(1)&cb=$(date +%s)" - skills/performing-web-cache-poisoning-attack/SKILL.md, line 212
curl -s -X GET \ - skills/performing-web-cache-poisoning-attack/SKILL.md, line 219
curl -s "https://target.example.com/page?a=1&b=2" # Cached as key1
and 11 more places
Runs commands on your computer
The author does not mention this. Expected for a security skill.
Found in 7 places.
Show 4 more
Downloads and installs other software
The author does not mention this.
Found in 1 place.
Safer alternatives
Low-risk skills in the same category (security) that look related. Check that one does what you need.
Install
Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.
if [ -e ~/.agents/skills/'performing-web-cache-poisoning-attack' ] || [ -L ~/.agents/skills/'performing-web-cache-poisoning-attack' ]; then echo 'A skill folder named performing-web-cache-poisoning-attack already exists — not replacing it' >&2; false; else d=$(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/performing-web-cache-poisoning-attack' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/performing-web-cache-poisoning-attack' ~/.agents/skills/'performing-web-cache-poisoning-attack' && rm -rf "$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/'performing-web-cache-poisoning-attack' ~/.claude/skills/'performing-web-cache-poisoning-attack' (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 | 77 |
| 2026-11-07 | 54a7988 | 57 |