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sc-websocket

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Detect WebSocket security flaws quickly

Software Engineering#security#authentication#vulnerability#injection#real-time#websocket#origin-validation
Authorersinkoc
Version1.0.0
Installs0

System Documentation

What problem does it solve?

WebSocket security is often overlooked in real-time web applications. This skill identifies critical weaknesses such as missing origin validation, missing authentication on upgrade, cross-site WebSocket hijacking risks, and unsafe message handling, helping teams harden WebSocket endpoints.

Core Features & Use Cases

  • Origin validation checks: detects whether the WebSocket upgrader enforces a strict origin policy.
  • Authentication enforcement: flags upgrade paths that allow unauthenticated connections.
  • Message validation & injection protection: identifies unsafe or unvalidated messages that could enable injection.
  • Protocol and transport guidance: warns about ws:// usage and offers secure alternatives (wss://) when appropriate.
  • Use Case: suitable for Node.js, Go, Python, and other WebSocket servers, including Socket.IO, gorilla/websocket, and SignalR implementations.

Quick Start

Run the scanner against your WebSocket-enabled project to identify origin validation gaps, missing authentication, and message validation weaknesses.

Dependency Matrix

Required Modules

None required

Components

Standard package

💻 Claude Code Installation

Recommended: Let Claude install automatically. Simply copy and paste the text below to Claude Code.

Please help me install this Skill:
Name: sc-websocket
Download link: https://github.com/ersinkoc/security-check/archive/main.zip#sc-websocket

Please download this .zip file, extract it, and install it in the .claude/skills/ directory.
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