Fuzzing
Fuzzing is a technique used to find vulnerabilities in software by providing unexpected input to the software. This can be done by providing unexpected input to a web application, or by providing unexpected input to a binary.
Wfuzz
wfuzz --hw=153 -c -t 200 -w ~/Documents/Security/wordlists/common.txt http://40.121.87.195:60004/\?file\=..//FUZZ.txt
--hw: Hide words with length equal to or less than the specified value-c: Show output in color-t: Number of threads-w: Wordlist to useFUZZ: Where the payload will be placed