Forbidden Buster is a tool designed to automate various techniques in order to bypass HTTP 401 and 403 response codes and gain access to unauthorized areas in the system. This code is made for security enthusiasts and professionals only. Use it at your own risk.


  • Probes HTTP 401 and 403 response codes to discover potential bypass techniques.
  • Utilizes various methods and headers to test and bypass access controls.
  • Customizable through command-line arguments.


  • Added API fuzzing methods, which probe for different API versions and also tamper with the data.
  • Removed rate limiting feature for now. Better implementation in the future.

Installation & Usage

Install requirements

pip3 install -r requirements.txt

Run the script

python3 -u


Forbidden Buster accepts the following arguments:

  -h, --help            show this help message and exit
  -u URL, --url URL     Full path to be used
  -m METHOD, --method METHOD
                        Method to be used. Default is GET
  -H HEADER, --header HEADER
                        Add a custom header
  -d DATA, --data DATA  Add data to requset body. JSON is supported with escaping
  -p PROXY, --proxy PROXY
                        Use Proxy
  --include-unicode     Include Unicode fuzzing (stressful)
  --include-user-agent  Include User-Agent fuzzing (stressful)
  --include-api         Include API fuzzing

Example Usage:

python3 --url "" --method POST --header "Authorization: Bearer XXX" --data '{\"key\":\"value\"}' --proxy "" --include-api --include-unicode

Published by Tamil S

Tamil has a great interest in the fields of Cyber Security, OSINT, and CTF projects. Currently, he is deeply involved in researching and publishing various security tools with Kali Linux Tutorials, which is quite fascinating.

Leave a comment

Your email address will not be published. Required fields are marked *