testing-websocket-api-security

Tests WebSocket API implementations for missing upgrade-handshake authentication.

What this skill does for you

Tests WebSocket API implementations for missing upgrade-handshake authentication, Cross-Site WebSocket Hijacking (CSWSH), message injection, insufficient input validation, message-flooding DoS, and information leakage, using Burp Suite's WebSocket interception and the wscat CLI to craft malicious payloads. Use for real-time API penetration testing or CSWSH/authorization-bypass assessments on WebSocket channels.

Quoted from the skill description in the pinned source

Who made it

Publishermukul975

Repositoryanthropic-cybersecurity-skills

Installs323as of Sep 27, 2026

Use it with Edge

Set up Edge for me: read getedge.cc/SKILL.md and follow it. Then use Edge to load the testing-websocket-api-security skill from mukul975/anthropic-cybersecurity-skills.

Paste it into Claude, ChatGPT, Codex or Cursor.

Or read the skill source first.

Security evidence

Security state at 2026-09-30: reviewed. State definitions. This records static evidence for this revision; live load eligibility is checked again.

3 static scans, 0 counted findings. The listed scanners recorded the results shown for this package revision.

Scanner	Date	Result
Edge static checks	2026-09-27	Pass
Cisco skill-scanner	2026-09-27	Pass
Semgrep Edge rules	2026-09-27	Pass

Static scans check the code, not how well the skill works.

Scanner scope, raw findings and mirrored provider records

Edge static checks (Edge-run): edge-static/1.0.1. Scope: Static patterns for remote execution, credentials with network sends, obfuscation, prompt overrides, hidden Unicode, binaries and persistence. Revision: 54a798831d2266a3ca61ce68a7acb80b81160d57. Raw findings: 1. Counted findings: .

Cisco skill-scanner (Edge-run): cisco-skill-scanner/2.1.0. Scope: Local static, YARA, pipeline and behavioral analyzers; no LLM or AI Defense analysis. Revision: 54a798831d2266a3ca61ce68a7acb80b81160d57. Raw findings: 5. Counted findings: .

Semgrep Edge rules (Edge-run): semgrep/1.178.0+edge-rules.c15016a36fd3+offline-v1. Scope: Six Edge-authored static rules with Semgrep CE; offline execution and metrics disabled. Semgrep-maintained rules excluded. Revision: 54a798831d2266a3ca61ce68a7acb80b81160d57. Raw findings: . Counted findings: .

Source and licence

Repository: https://github.com/mukul975/anthropic-cybersecurity-skills
Pinned skill file: View source at revision
Revision: 54a798831d2266a3ca61ce68a7acb80b81160d57
Package hash: sha256:a428574710ea8ab7a34b6f66dc6c5c1dc1895d3b62b47db04e01737d0f970c1d
Licence: Apache-2.0