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auditing-cors-policy

95 / 100 · Low risk

Fine to try. Some of what it can do is expected: a coding skill usually runs build and test commands.

By jeremylongshore/tons-of-skills-marketplace (GitHub) · coding · 2,921 stars · scanned at commit 8dc06f0

Audit a target's CORS posture — Access-Control-Allow-Origin handling, reflected-origin bypass, credentials+wildcard mismatch, preflight OPTIONS behavior, Vary header correctness. Use when: a third-party integration is failing CORS preflight and someone proposes "just set Allow-Origin to *" as the fix, OR your bug-bounty inbox has a credential-reuse exploit chain. Threshold: any reflection of arbitrary Origin into Allow-Origin, Allow-Credentials:true with wildcard origin (browser-rejected combo …

Works with any agent that supports SKILL.md skills.

What this skill can do

Other copies in this repository

jeremylongshore/tons-of-skills-marketplace has 1 more folder with a skill named auditing-cors-policy. This page shows the lowest-scoring copy.

• plugins/security/penetration-tester/skills/auditing-cors-policy 95/100 · Low risk

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'auditing-cors-policy' ] || [ -L ~/.agents/skills/'auditing-cors-policy' ]; then echo 'A skill folder named auditing-cors-policy already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/jeremylongshore/tons-of-skills-marketplace' "$d" && git -C "$d" checkout --quiet '8dc06f02eb00b7d8d1c0e69dfb3add2fd9500979' -- 'skills/.curated/auditing-cors-policy' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/.curated/auditing-cors-policy' ~/.agents/skills/'auditing-cors-policy' && 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/'auditing-cors-policy' ~/.claude/skills/'auditing-cors-policy' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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