exploiting-idor-vulnerabilities

75 / 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

Identifies and exploits Insecure Direct Object Reference (IDOR) vulnerabilities by manipulating object identifiers (numeric IDs, UUIDs, slugs) in API requests and URLs, using Burp Suite proxy history, Intruder, and the Authorize extension to test object-level authorization across sessions. Use during authorized penetration tests or bug bounty work to validate that CRUD endpoints and multi-tenant applications enforce per-object access control.

Works with any agent that supports SKILL.md skills.

What this skill can do

Runs commands on your computer

The author does not mention this. Expected for a security skill.

Found in 4 places.

skills/exploiting-idor-vulnerabilities/SKILL.md, line 118TOKEN_A="Bearer eyJ..."
skills/exploiting-idor-vulnerabilities/SKILL.md, line 156curl -s -H "Authorization: $TOKEN_A" \
skills/exploiting-idor-vulnerabilities/SKILL.md, line 180curl -s -X POST -H "Authorization: $TOKEN_A" \

Show 1 more

skills/exploiting-idor-vulnerabilities/SKILL.md, line 218ffuf -u "https://target.example.com/api/v1/users/FUZZ/profile" \

Connects to the internet

The author does not mention this. Expected for a security skill.

Found in 20 places.

skills/exploiting-idor-vulnerabilities/SKILL.md, line 121curl -s -H "Authorization: $TOKEN_A" \
skills/exploiting-idor-vulnerabilities/SKILL.md, line 125curl -s -H "Authorization: $TOKEN_A" \
skills/exploiting-idor-vulnerabilities/SKILL.md, line 134curl -s -o /dev/null -w "Own: %{http_code} " \

Show 17 more

skills/exploiting-idor-vulnerabilities/SKILL.md, line 138curl -s -o /dev/null -w "Other: %{http_code}\n" \
skills/exploiting-idor-vulnerabilities/SKILL.md, line 144curl -s -X PUT -H "Authorization: $TOKEN_A" \
skills/exploiting-idor-vulnerabilities/SKILL.md, line 156curl -s -H "Authorization: $TOKEN_A" \
skills/exploiting-idor-vulnerabilities/SKILL.md, line 160curl -s -H "Authorization: $TOKEN_A" \
skills/exploiting-idor-vulnerabilities/SKILL.md, line 165curl -s -H "Authorization: $TOKEN_A" \
skills/exploiting-idor-vulnerabilities/SKILL.md, line 169curl -s -H "Authorization: $TOKEN_A" \
skills/exploiting-idor-vulnerabilities/SKILL.md, line 180curl -s -X POST -H "Authorization: $TOKEN_A" \
skills/exploiting-idor-vulnerabilities/SKILL.md, line 186curl -s -X POST -H "Authorization: $TOKEN_A" \
skills/exploiting-idor-vulnerabilities/SKILL.md, line 192curl -s -H "Authorization: $TOKEN_A" \
skills/exploiting-idor-vulnerabilities/SKILL.md, line 196curl -s -X POST -H "Authorization: $TOKEN_A" \
skills/exploiting-idor-vulnerabilities/SKILL.md, line 202curl -s -H "Authorization: $TOKEN_A" \
skills/exploiting-idor-vulnerabilities/SKILL.md, line 206curl -s -X POST -H "Authorization: $TOKEN_A" \
skills/exploiting-idor-vulnerabilities/SKILL.md, line 228curl -s -H "Authorization: $TOKEN_A" \
skills/exploiting-idor-vulnerabilities/SKILL.md, line 235curl -s -X DELETE -H "Authorization: $TOKEN_A" \
skills/exploiting-idor-vulnerabilities/references/api-reference.md, line 23Creates two `requests.Session` objects with different Bearer tokens for cross-user testing.
skills/exploiting-idor-vulnerabilities/scripts/agent.py, line 27self.session_a = requests.Session()
skills/exploiting-idor-vulnerabilities/scripts/agent.py, line 30self.session_b = requests.Session()

Downloads and installs other software

The author does not mention this.

Found in 1 place.

skills/exploiting-idor-vulnerabilities/scripts/agent.py, line 14sys.exit("requests is required: pip install requests")

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/'exploiting-idor-vulnerabilities' ] || [ -L ~/.agents/skills/'exploiting-idor-vulnerabilities' ]; then echo 'A skill folder named exploiting-idor-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 "$d" checkout --quiet '54a798831d2266a3ca61ce68a7acb80b81160d57' -- 'skills/exploiting-idor-vulnerabilities' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/exploiting-idor-vulnerabilities' ~/.agents/skills/'exploiting-idor-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/'exploiting-idor-vulnerabilities' ~/.claude/skills/'exploiting-idor-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

Date	Version	Score
2026-11-08	`54a7988`	75
2026-11-07	`54a7988`	65