HackingHub

Educating the next generation of ethical hackers.

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@NahamSec Link to full video:
https://t.co/UB5JTQNmRB

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Things you MUST know before diving into bug bounty. 😎 

@NahamSec highlights the non-negotiable fundamentals of your hacking journey.

Here’s a quick watch. 👇

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Me staring at my callback server, waiting for that one Blind XSS payload I injected into a support ticket three weeks ago.

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Check them out. 👇
https://t.co/2nrEoi0c9P

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Here’s a quick process for finding mass-assignment vulns:

➡️ Do a GET request on any resource you own, note all fields returned
➡️ Replay those fields in the update POST/PUT requests
➡️ Add fields you see in API docs, JS source, or error messages

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➡️ Check response for changed values
➡️ Test role/plan/is_admin
➡️ Also try org_id/tenant_id to cross tenant boundaries

Got it?

Learn more techniques by hacking our FREE Hubs!

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POV: there's an avatar upload that only accepts images, and you want to land a PHP webshell.

Here's the weakness. A lot of upload filters only read the first few bytes (aka magic bytes) of a file to decide what it is. PNGs open with ‰PNG, GIFs with GIF8, JPEGs with their own signature. If the file type validator checks those magic bytes and nothing else, you can bolt them onto the front of any file and it will be accepted.

So you give it what it wants: a real image header up top, your payload underneath.

🖼️ Upload a clean image first. Note the success message and where the file lands.
🥷 Build a file that opens with valid PNG (or GIF/JPEG) magic bytes, then your PHP right after.
😏 Save it as .php or .phtml and upload.
🏆 Browse to the uploaded file and pass it a command.

Payload:

‰PNG\r\n<?php system($_GET['cmd']); ?>

Then hit the URL with ?cmd=id and see what comes back 🤞

More techniques like this, free in our Hubs 👇

https://t.co/BXCwq0g0f1

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Hungry for another challenge?

 Dive into our free hubs👇
https://t.co/2nrEoi0c9P

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There’s a blacklist.

What’s your BYPASS? 👇

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Ready for your next hacking challenge?

Explore our free hubs👇
https://t.co/2nrEoi0c9P

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Oh, there’s some security implementation. 😎

Do you have a BYPASS? 👇

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Want to practice your hacking techniques on real-world scenarios?

Access is 100% FREE. 👇 
https://t.co/2nrEoi0c9P

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POV: You are poking at an enterprise financial app.

The DOM is full of custom elements like &lt;vaadin-text-field&gt;, and you see network traffic firing POST requests to endpoints with ?v-r=uidl and ?v-uiId=.

You know it’s Vaadin.

👇🧵

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Vaadin treats the request as a framework request, triggers initialization, and creates a session without proper authorization.

This is CVE-2026-2742: unauthorized session creation via reserved framework path access.

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🔗

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This one is a bit tight. Can you find a crack?

Craft your PoCs. 

(This is the frontend code. Backend code is in the first reply👇.)