Individual skill
broken-authentication
This skill should be used when the user asks to "test for broken authentication vulnerabilities", "assess session management security", "perform credential stuffing tests", "evaluate password policies", "test for session fixation", or "identify authentication bypass flaws". It provides comprehensive techniques for identifying authentication and session management weaknesses in web applications.
cli-tool/components/skills/security/broken-authentication/SKILL.md
Source commit ad81bf053f80b626801decf425f501ba49983d98
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- Last checked
- Nov 4, 2026
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Repository context
- Repository stars (not skill ratings)
- 33,212
- Repository last updated
- Nov 8, 2026
- License
- MIT
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- anthropic Repository topic
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Read excerpt
# Broken Authentication Testing
## Purpose
Identify and exploit authentication and session management vulnerabilities in web applications. Broken authentication consistently ranks in the OWASP Top 10 and can lead to account takeover, identity theft, and unauthorized access to sensitive systems. This skill covers testing methodologies for password policies, session handling, multi-factor authentication, and credential management.
## Prerequisites
### Required Knowledge
- HTTP protocol and session mechanisms
- Authentication types (SFA, 2FA, MFA)
- Cookie and token handling
- Common authentication frameworks
