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Bug bounty

August 17, 2026

The 10 Best Bug Bounty Tools in 2026 (What Actual Hunters Use for Manual Testing)

Beyond the generic “run a scanner” lists — the toolkit built around finding access control and business logic bugs, the kind automated…

By b0dj0x

3 min read

Beyond the generic "run a scanner" lists — the toolkit built around finding access control and business logic bugs, the kind automated scanners consistently miss

Most "best bug bounty tools" lists are just a wall of automated scanners. Scanners are useful for triage, but the highest-severity findings — broken access control, business logic bypasses, auth flaws — are almost never found by a tool running unattended. They're found by someone deliberately manipulating requests and asking "what happens if I change this." This list leans toward that kind of tooling: the stuff that actually sits in your hands while you're thinking, not just running in the background.

Table of Contents

  1. Burp Suite
  2. Autorize
  3. Turbo Intruder
  4. Param Miner
  5. JWT Editor
  6. Postman
  7. FFUF
  8. Subfinder + Amass
  9. Nuclei
  10. GAU / Waybackurls

1. Burp Suite

The center of gravity for almost every serious hunter's workflow. It's an intercepting proxy first — every request your browser makes passes through it, and you can pause, inspect, and modify anything before it hits the server. Everything else on this list either plugs into Burp as an extension or exists to feed it data.

Community Edition is free and covers manual testing fully; Professional adds the extension marketplace (BApp Store) and faster Intruder, which matters once you're doing serious business logic work.

2. Autorize

A Burp extension purpose-built for access control testing — arguably the single most direct match for manual access-control-focused hunting. You browse the app as a high-privilege user with Autorize running, and it automatically replays every request using a low-privilege session's cookies in the background, flagging any response that shouldn't have succeeded.

It turns what would be hours of manual "log in as Account B, replay this request" work into something that happens passively while you browse normally as Account A.

3. Turbo Intruder

A Burp extension for sending large volumes of requests with precise timing control, written in Python. Standard Intruder is fine for simple brute-forcing; Turbo Intruder is what you reach for when timing itself is the vulnerability — race conditions in coupon redemption, inventory checks, or fund transfers where sending two requests within milliseconds of each other breaks an assumption the developer never tested.

python

def queueRequests(target, wordlists):
    engine = RequestEngine(endpoint=target.endpoint,
                            concurrentConnections=10,
                            engine=Engine.THREADED)
    # Fire the same request many times, near-simultaneously,
    # to test for race conditions in business logic
    for i in range(20):
        engine.queue(target.req)
def handleResponse(req, interesting):
    table.add(req)

4. Param Miner

Another Burp extension, this one for discovering hidden or unlinked parameters an application accepts but never documents in its normal flow — a classic source of business logic bugs, since developers frequently leave debug parameters, feature flags, or discount logic behind a parameter name nobody's supposed to know about.

5. JWT Editor

JSON Web Tokens carry authorization claims directly inside them — role, user ID, permissions — which makes them a frequent access control target. JWT Editor (Burp extension) or the standalone jwt_tool let you decode, modify, and re-sign tokens to test whether the server actually validates the signature and claims it's trusting, rather than just trusting whatever the client sends.

bash

# jwt_tool: check for common signature-validation weaknesses
python3 jwt_tool.py <token> -M a

6. Postman

Sometimes the most useful tool is the one that lets you think slowly. Postman is where you build out a full, deliberate sequence of API calls — create a resource, check its state, attempt an action out of order — to map a multi-step business process before you start trying to break the order of operations. Save the whole flow as a collection once you've mapped it, so you can replay a specific sequence instantly as you test variations.

7. FFUF

A fast web fuzzer for discovering content, endpoints, and parameters that aren't linked anywhere in the visible app — old API versions, admin panels, staging endpoints left reachable in production.

bash

ffuf -u https://target.example.com/FUZZ \
  -w wordlist.txt -mc 200,301,302,403

8. Subfinder + Amass

Two subdomain enumeration tools that are usually run together to maximize coverage — Subfinder for speed, Amass for depth. Widening your view of an organization's actual attack surface matters because forgotten subdomains (a staging environment, an old marketing microsite, an internal tool accidentally exposed) are disproportionately where access control gets sloppy, since nobody's actively maintaining them.

bash

subfinder -d target.com -o subs.txt
amass enum -d target.com -o amass_subs.txt

9. Nuclei

A template-based scanner that checks targets against thousands of community-maintained templates for known misconfigurations and CVEs. It won't find a novel business logic bug, but it's excellent triage across a large scope — run it early to clear out the low-hanging fruit before you invest manual time.

bash

nuclei -u https://target.example.com -t exposures/ -t misconfiguration/

10. GAU / Waybackurls

Pulls historical URLs for a domain from the Wayback Machine, Common Crawl, and other archives — surfacing endpoints that existed in a previous version of the app and may still be live, unlinked, and forgotten. Deprecated API versions are a recurring source of access control bugs, since security fixes applied to the current version often never get backported to the old one still sitting on the server.

bash

echo "target.com" | gau | grep -E "\.(php|asp|json)\?"

The pattern across this list, if you look at it as a whole: heavy on request manipulation (Burp, Turbo Intruder, Param Miner), heavy on surfacing forgotten attack surface (Subfinder, Amass, GAU), and light on "click run and wait." That's intentional — for access control and business logic work specifically, the tools matter less than the habit of manually asking "what was this endpoint supposed to check, and did it actually check it." The tools just make that habit faster to execute.