init

web/ffuf.md

@@ -0,0 +1,33 @@
+---
+title: "FFUF"
+description: "Reference and usage examples for ffuf, a fast web fuzzer for directories, endpoints and subdomains."
+tags:
+  ["web", "enumeration", "discovery", "subdomain", "directory", "bruteforce"]
+publishDate: 2026-06-01
+---
+
+**Fuff (or ffuf)** is a fast web fuzzer written in Go, mainly used in
+cybersecurity to discover hidden directories, files, API endpoints, subdomains,
+vhosts and more. Its speed and flexibility make it a must-have for pentesters
+and bug bounty hunters.
+
+```bash
+# Flags:
+# -rate 50 -t 50 # Limit requests to 50 per second with 50 concurrent threads
+# -X POST|GET|PUT # Set method
+# -e .php,.asp,.bak,.db # Set the extension
+# -recursion -recursion-depth 3 # Recursive fuzzing up to 3 levels deep
+# -fc 404,500 # Exclude responses with status codes 404 and 500
+
+# Examples:
+ffuf -w wordlist.txt -u $url/FUZZ # Basic directory/file fuzzing using a wordlist
+ffuf -w subdomains.txt -u https://FUZZ.$url # Subdomain fuzzing
+ffuf -w vhosts.txt -u $url -H "Host: https://FUZZ.$url" # Virtual host fuzzing by modifying the Host header
+ffuf -w wordlist.txt -u $url/page.php?FUZZ=value # GET parameter fuzzing in the query string
+ffuf -w wordlist.txt -u $url/api -X POST -d 'FUZZ=value' # POST body parameter fuzzing
+ffuf -w wordlist.txt -u $url/FUZZ -b 'session=abcdef' # Use a session cookie during fuzzing
+ffuf -w headers.txt -u $url -H "X-Custom-Header: FUZZ" # HTTP header fuzzing
+ffuf -w passwords.txt -X POST -u $url/login -d "username=admin&password=FUZZ" # Password brute-forcing for user "admin"
+ffuf -w users.txt:USER -w passwords.txt:PASS -u "$url/login?username=USER&password=PASS" -mode pitchfork # Pitchfork mode: matches each line from both wordlists (USER[i], PASS[i])
+ffuf -w users.txt:USER -w passwords.txt:PASS -u "$url/login?username=USER&password=PASS" -mode clusterbomb # Clusterbomb mode: tests every user with every password combination
+```