skills.rest
sayseven7
sayseven7COMMUNITY
Explore all skills by this author →
WebsiteGitHub

websocket-security

Analyze WebSocket security for handshake validation, session handling, and message-channel abuse.

11|4|Updated Jun 7, 2026
Search Tags:#websocket#socket.io#burp suite#cswsh#origin validation#message fuzzing#real-time security
One-click install
npx skills add https://github.com/sayseven7/frameseven --skill websocket-security-sayseven7
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: websocket-security
Source: https://github.com/sayseven7/frameseven/tree/main/internal/mcp/skills/websocket-security
Command: npx skills add https://github.com/sayseven7/frameseven --skill websocket-security-sayseven7

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill helps you evaluate WebSocket endpoints for insecure handshakes, weak session binding, cross-site hijacking exposure, and message-level abuse in authorized security tests.

Core Features & Use Cases

  • Handshake review: Check Upgrade headers, Origin validation, protocol negotiation, and secure transport settings.
  • Session and auth testing: Assess whether browser cookies, tokens, and subprotocols are correctly bound to the connection.
  • Message abuse analysis: Probe for injection, replay, rate-limit gaps, and binary payload handling issues.
  • Use case: Review a chat or live-update feature to confirm that only trusted origins can connect and that sensitive actions cannot be triggered by a malicious page.

Quick Start

Use the websocket-security skill to inspect the WebSocket handshake, verify Origin and authentication handling, and assess the endpoint for CSWSH and message injection risks.

Frequently Asked Questions about websocket-security

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I test WebSocket endpoints for cross-site hijacking and Origin validation issues?▼

WebSocket security testing involves verifying Origin validation, checking Upgrade headers, and confirming that browser cookies and tokens are securely bound to the connection to prevent cross-site WebSocket hijacking (CSWSH) in real-time web applications.

What is cross-site WebSocket hijacking and how does weak session binding exploit it?▼

Cross-site WebSocket hijacking exploits weak session binding by allowing malicious pages to use victim cookies for unauthorized connections. Verifying Origin checks and secure transport settings prevents attackers from bypassing authentication on browser-connected APIs.

How do I inspect and replay WebSocket frames for message fuzzing and injection testing?▼

Use Burp Suite or similar inspection tooling to intercept and replay WebSocket frames, probing message channels for injection, replay, rate-limit gaps, and binary payload handling to assess message fuzzing readiness and identify channel abuse.

Does this WebSocket security analysis work with Socket.IO transports and notification streams?▼

Yes, the analysis applies to Socket.IO transports, notification streams, chat systems, and browser-connected APIs, evaluating handshake validation, session handling, and message-channel abuse specific to real-time web applications.

What is the best way to secure authentication tokens and subprotocols in a WebSocket handshake?▼

Secure authentication tokens and subprotocols by verifying secure transport settings, checking protocol negotiation, and ensuring browser cookies and tokens are correctly bound to the WebSocket connection to prevent unauthorized access.

Why does my WebSocket connection accept requests from untrusted origins?▼

Your WebSocket connection accepts untrusted origins because of missing or weak Origin validation during the handshake. Implementing strict Origin checks and reviewing Upgrade headers ensures only trusted pages can establish connections.

Related Skills

Explore More Software Engineering Skills→
ok-helloworldok-helloworld
241

websocket-security

Identify WebSocket handshake weaknesses, CSWSH conditions, and message-level vulnerabilities.

Community
Intermediate
lNwNllNwNl
2

websocket-security

Detect WebSocket security weaknesses in handshake validation, session binding, and message semantics.

Community
Intermediate
securityfortechsecurityfortech
6

http-request-smuggling

Detect and exploit HTTP request smuggling via conflicting Content-Length and Transfer-Encoding headers.

Official
Advanced
EntroVyxEntroVyx
3

hunt-websocket

Detect WebSocket vulnerabilities including CSWSH, message tampering, and authorization bypasses.

Community
Advanced