FFUF Web Fuzzing

Guidance for using ffuf (Fuzz Faster U Fool) effectively during authorized penetration testing.

Prerequisites

ffuf must be installed: brew install ffuf (macOS) or go install github.com/ffuf/ffuf/v2@latest

When to Use

• Running directory, file, or subdomain discovery against web targets
• Fuzzing API endpoints, parameters, or POST data
• Authenticated fuzzing with raw HTTP requests
• Analyzing ffuf JSON output for anomalies and interesting findings
• Building fuzzing strategies (wordlist selection, filtering, rate limiting)
• IDOR testing with authenticated sessions

When NOT to Use