🔍 Discover Hidden Attack Surfaces with FFUF Fuzzing

In the world of web application security, attackers don’t just look at what’s visible — they dig deeper to uncover hidden endpoints, directories, and parameters. One of the most powerful tools for this purpose is FFUF (Fuzz Faster U Fool).

If you’re into bug bounty, penetration testing, or CTFs, mastering FFUF can significantly boost your reconnaissance phase.

🚀 What is FFUF?

FFUF is a fast web fuzzer written in Go that helps discover hidden resources by sending a large number of HTTP requests using wordlists.

It’s widely used for:

• Directory and file discovery
• Subdomain fuzzing
• Parameter fuzzing
• Virtual host discovery

Usage :

#Basic Fuzzing
ffuf -w wordlists.txt -u http://ffuf.me/cd/basic/FUZZ

Basic Fuzzing

#Recursion Fuzzing
ffuf -w wordlists.txt -u http://ffuf.me/cd/recursion/FUZZ -recursion

Recursion Fuzzing

#File Extension
ffuf -w wordlist.txt -u http://ffuf.me/cd/ext/FUZZ -e <file_extension> -recursion

with File Extension Fuzzing

#Parameter Fuzzing
ffuf -w params.txt -u http://ffuf.me/cd/parm/data?FUZZ=1

Parameter Fuzzing

#Filter by Response Size
ffuf -w wordlist.txt -u http://ffuf.me/cd/no404/FUZZ -fs 669

filtered by response size

#Filter by Status code
ffuf -w wordlist.txt -u http://ffuf.me/cd/rate/FUZZ -mc 200, 429

filtered by status code

#VHost Dicovery
ffuf -u http://target.com -H "Host: FUZZ.target.com" -w wordlist.txt

VHost discovery

#Subdomain Fuzzing
ffuf -u http://FUZZ.target.com -w subdomains.txt

Subdomain discovery

🎥 Watch the Full Tutorial

If you prefer a hands-on walkthrough, I’ve created a complete video explaining FFUF and Virtual Host Discovery in action.

▶️ Watch here:

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