$1000 Bug Bounty Guide: Uncovering Hidden Vulnerabilities Through JavaScript Analysis

About Me

Hi everyone! My name is Satyam Pawale, also known as @hackersatty in the bug bounty world. I started bug hunting in 2024 and have been passionate about finding security vulnerabilities ever since.

This blog is meant to share my experience and help others learn from it. If you like it or have any feedback, feel free to drop a comment below. Let’s get started!

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JavaScript files are a goldmine for security researchers and bug bounty hunters. Analyzing them properly can reveal hidden API endpoints, sensitive directories, and even potential security vulnerabilities. In this article, we’ll explore techniques to extract useful information from JavaScript files and discuss how to go beyond just identifying GET requests.

Why JavaScript Files Matter in Bug Bounties

When analyzing a domain or subdomain, JavaScript files often contain references to endpoints, API keys, and sensitive directories. These files are meant to be consumed by the browser, but sometimes developers leave behind crucial information that attackers can exploit.

Extracting Information from JavaScript Files

The first step in JavaScript analysis is downloading and reviewing all JavaScript files loaded on a…