Hey there, back again with another post! 😄
Web fuzzing is an automated testing method that sends many random, malformed, or unexpected inputs to a web application.
Pentesters observes the application responses, status codes, and timings to find crashes, errors, or odd behavior.
Those signs can reveal vulnerabilities such as XSS, Code Injection, SQL Injection, Sensitive data exposure, etc.
This cheat-sheet-style post will give beginners the practical basics of what fuzzing is, why it matters, how hackers find sensitive data by doing only fuzzing in bug bounty programs and some tips and tricks to find other vulnerabilities.
Popular web-fuzzing tools include FFUF, Gobuster and DirBuster or Dirb for directory and file discovery, Burp Suite’s Intruder for custom payloads.
FFUF and DirBuster comes pre isntalled in Kali Linux. So will use these only for this post.
Wordlists are simple text files full of likely filenames and folder names that fuzzing tools try on a web app to find hidden pages. You can think of them as a checklist the tool works through. The better the list, the more useful results you get. You can use ready-made collections like SecLists or create your own by collecting common names and removing duplicates. Tools such as ffuf and…