5 Burp Suite Extensions That Quietly 10x My Bug Bounty Payouts

Most hunters use Burp's default scanner and stop there. That's why everyone finds the same easy bugs. If you want better payouts, you need tools that look where the default scanner doesn't. Here are 5 extensions that actually changed my results — what they do, how to use them, and a real-world example for each.

1. Param Miner — finds hidden parameters

What it does: Guesses hidden parameters and headers that aren't visible in normal requests. Also great for finding cache poisoning bugs.

How to use it:

• Right-click a request → Extensions → Param Miner → "Guess params."
• Try it on both headers and GET parameters.
• If it finds something, test it manually in Repeater and watch what changes.

Example: A hidden header changed how a page got cached. That header wasn't checked properly, so the bug let an attacker poison the cached page for every visitor — a serious bug most testers would never see, because the header isn't sent by normal browsing.

2. Backslash Powered Scanner — finds injection bugs without known payloads

What it does: Instead of using common attack strings, it sends broken syntax (quotes, brackets, backslashes) and checks how the app reacts. This finds injection bugs even when common payloads are blocked.

How to use it:

• Run "active scan" on a single parameter from Repeater.
• Check the extension's tab for anything flagged as unusual behavior.
• Manually test based on what it reacted to (code-like syntax, template syntax, etc.).

Example: Normal XSS/SQLi payloads were blocked on a form field. But this tool noticed the app reacted differently to ${ — leading to a template injection bug that gave code execution on the server.

3. JS Miner — finds hidden API endpoints and secrets in JavaScript

What it does: Automatically scans every JS file the site loads and pulls out API endpoints, secrets, and cloud storage links.

How to use it:

• Just browse the site normally with it running in the background.
• Check its results tab often.
• Test any new endpoint it finds with your account, then with no login, then with another user's login.

Example: It found an internal export endpoint hidden in a JS file. That endpoint wasn't protected properly — using a low-level account, it still returned data for every user in the company.

4. Collaborator Everywhere — catches bugs with no visible response

What it does: Automatically injects test payloads in common headers while you browse, and tells you if the server secretly makes a request back to you. This catches SSRF and blind injection bugs.

How to use it:

• Turn it on and use the app normally — uploads, settings, notifications work best.
• Watch the Collaborator tab for unexpected hits.
• If you get one, find the exact field causing it and try to escalate (like reaching internal-only URLs).

Example: A "Referer" header quietly triggered a server-side request with no visible sign in the browser. That turned into an SSRF bug that reached internal cloud data — something impossible to spot just by looking at page responses.

5. Hackvertor — helps bypass filters

What it does: Lets you encode your payloads (Base64, URL encoding, Unicode tricks, etc.) and combine multiple encodings to slip past filters and WAFs.

How to use it:

• When a payload gets blocked, wrap it using different Hackvertor encodings.
• Try combining more than one encoding.
• Confirm the payload still works after decoding on the backend, not just that it passed the filter.

Example: A filter blocked normal script tags. A mix of HTML entity + Unicode encoding slipped through and still ran as stored XSS — a bug others missed because they gave up after one or two basic bypass attempts.

The real lesson

None of these tools "auto-hack" anything. They just point you toward things regular scanning misses — hidden params, weird behavior, background JS, invisible server requests, and filter gaps. Most bounty hunters test the same obvious surface. The money is in the parts nobody else is checking.

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Try one of these extensions today on a target you already have access to. You'll probably find something.