XSS Finder

Some simple tools which I'm using frequently to find XSS. Keep in mind: Do not trust scripts only! Sometimes the vulnerability is more complex and needs special treatment ;) Those scripts won't find dom bases/dynamic XSS!

Why another XSS Find Tool?

Because most tools I tested did not find simple reflected XSS - that's why I hacked this script together. And it works... if you know how to use it.

checkGivenParameters.py

How to execute:

python3 checkGivenParameters.py -url "http://victim/?param1=test&param2=test2&foo=bar" -payload '[XSS"]'

This script...

• searches for inputs, textareas, selects, buttons and uses their name/id values as additional get parameters
• replaces every get value with the given payload and checks if its reflected in the http body

Optional parameters:

• payload

Hints

Using the default payload may result in a lot of false results.

Screenshots

XSS on a starbucks subdomain

XSS on a General Motors subdomain

parameterSearchInChunksSingleThread.py

How to execute:

python3 parameterSearchInChunksSingleThread.py -u "http://victim/" --paramlist wordlists/params.txt --extended --extendedchar "<" --chunksize 75 --verbose --wait 5

This scripts...

• searches for inputs, textareas, selects, buttons and uses their name/id as additional get parameters
• adds also the current urls get parameters (if the exist)
• Creates for every parameter a custom payload, creates then even sized chunks
• a param-value query string based on every chunk is generated and then requested, response is checked for every payload

Optional parameters:

• paramlist
• verbose
• extended
• chunksize (default: 75, using a bigger value may result in server errors due small client buffer settings!!)
• extendedchar
• wait (default: 0, wait time in seconds between requests)

Screenshots

Checking Brute Logic XSS Page with parameter wordlist...

Checking Brute Logic XSS Page without parameter wordlist...

Checking Starbucks subdomain (with xss):

Wordlist

Thanks to Daniel Miessler for the parameter wordlist: https://github.com/danielmiessler/SecLists

I added some custom parameters ;)