Individual skill
hunt-websocket
Hunt WebSocket vulnerabilities — Cross-Site WebSocket Hijacking (CSWSH), missing/weak Origin validation on the WS handshake, no per-message authentication, message tampering, socket.io namespace/room authorization bypass, and handshake-layer Upgrade smuggling. Use when target has WebSocket endpoints (ws:// or wss://), socket.io / SignalR / Phoenix Channels, real-time features, chat, live dashboards, notifications, or trading platforms.
skills/hunt-websocket/SKILL.md
Source commit d67cc00d9297a15b9210121e0a93c33f9fb6be46
What was checked
- Matches the observed repository HEAD
- Yes
- Scanner rules are current
- No
- Repository scan complete
- No
- Skill scan complete
- No
- Observed behavior
- Not checked yet
- Last checked
- Nov 4, 2026
These are observations at the recorded commit, not a guarantee of safety. Review the source before running it.
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Repository context
- Repository stars (not skill ratings)
- 5,492
- Repository last updated
- Nov 7, 2026
- License
- MIT
Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.
- ai-security Repository topic
- anthropic Repository topic
- application-security Repository topic
- bug-bounty Repository topic
- bugbounty Repository topic
- bugcrowd Repository topic
- claude Repository topic
- claude-code Repository topic
- claude-skills Repository topic
- ethical-hacking Repository topic
- security Derived category
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# HUNT-WEBSOCKET — WebSocket Security
## Crown Jewel Targets
[Credential-related source omitted]
**Highest-value chains:**
- **CSWSH → data exfil / ATO** — handshake authenticates via ambient cookie, no CSRF token, Origin not enforced → attacker page opens WS as the victim and streams their messages/PII/tokens. If the stream carries a session/refresh/CSRF token, this escalates to ATO.
- **No per-message auth** — HTTP/handshake auth present but individual WS frames are not re-authorized → privileged messages accepted (`deleteUser`, `getSecretConfig`).
- **Message tampering** — modify in-flight frames (price, qty, userId, amount) in trading/game/checkout apps → financial fraud.
- **socket.io namespace / room authz bypass** — connect to a privileged namespace or join another user's room without a permission check → cross-tenant real-time exfil.
- **Handshake-layer Upgrade smuggling** — a malformed `Upgrade`/`Connection`/`Sec-WebSocket-*` handshake makes the front proxy and origin disagree on whether an upgrade occurred → request-smuggling tunnel.
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