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JavaScript Enumeration for Bug Bounties: Expose Hidden Endpoints & Secrets Like a Pro!

Akash Ghosh
InfoSec Write-ups
Published in
3 min readFeb 27, 2025

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JavaScript files are an for bug bounty hunters, often revealing . If you’re skipping JS enumeration, you’re 💰

Hi, I’m Akash (myselfakash20), This guide walks you through to extract hidden data from JavaScript files efficiently. Whether you’re a , this guide is for you!

1️. Finding JavaScript Files on a Target 🎯

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# Get all JavaScript files from a target using gau (GetAllURLs)
gau target.com | grep "\.js" | tee js_files.txt

# Extract JS file URLs from Wayback Machine
waybackurls target.com | grep "\.js" | tee js_wayback.txt

# Use katana for fast crawling
katana -u https://target.com -jc -silent | tee js_katana.txt

# Combine all JS sources
echo target.com | subfinder | httpx -silent | gau | grep "\.js" | anew…

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Written by Akash Ghosh

Akash Ghosh|Ethical Hacker | Cybersecurity Expert | Web & Mobile Security Expert

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