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testing-for-json-web-token-vulnerabilities

75 / 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

Test JWT implementations for critical vulnerabilities including algorithm confusion, none algorithm bypass, kid parameter injection, and weak secret exploitation to achieve authentication bypass and privilege escalation.

Works with any agent that supports SKILL.md skills.

What this skill can do

Safer alternatives

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Install

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

if [ -e ~/.agents/skills/'testing-for-json-web-token-vulnerabilities' ] || [ -L ~/.agents/skills/'testing-for-json-web-token-vulnerabilities' ]; then echo 'A skill folder named testing-for-json-web-token-vulnerabilities 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 "$d" checkout --quiet '293ce9f76e3abcd5ba18db284688bc0d9ac6691d' -- 'plugins/asi/skills/testing-for-json-web-token-vulnerabilities' && mkdir -p ~/.agents/skills && cp -R "$d"/'plugins/asi/skills/testing-for-json-web-token-vulnerabilities' ~/.agents/skills/'testing-for-json-web-token-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-json-web-token-vulnerabilities' ~/.claude/skills/'testing-for-json-web-token-vulnerabilities' (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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Score history