CyberVuln LLC

CyberVuln LLC Uncover the unseen, Secure the unknown

Your demo environment is production with fewer buttons.We started an assessment with no credentials and no signup page. ...
08/17/2026

Your demo environment is production with fewer buttons.

We started an assessment with no credentials and no signup page. The only way in was a locked-down demo.

Three findings later, we had stored JavaScript executing in the browsers of users who opened that record.

The path:
→ Guessable route exposed the signup page the demo was supposed to hide
→ A boolean in the server response — not the server itself — decided who saw admin functionality
→ Admin write access led to an unsanitized field, and stored XSS

Attack chains don't show up in a scanner report. They show up when someone asks "and then what?" after the first finding.

Full write-up by Eslam Mohamed, Pe*******on Tester @ CYBERVULN LLC :

Breakdown here:

👉 https://www.cybervuln.com/blog/from-demo-to-full-access-how-one-simple-step-leads-to-3-security-vulnerabilities

Is the lock on the door, or just painted on the wall?One of our testers looked at a SaaS platform that limited free orga...
08/03/2026

Is the lock on the door, or just painted on the wall?

One of our testers looked at a SaaS platform that limited free organizations to a single user. The “Invite User” button was greyed out, with a tidy “upgrade for more seats” prompt next to it.

The catch: that limit lived entirely in the browser.

The invite endpoint — /api/v1/users-invite — required a valid login, but never checked the org’s plan or seat count. Replay the request directly (Burp, curl, anything) and the server happily returned 200 and sent the invite. A free-tier account could add unlimited members and walk straight past the paid upsell.

No payload. No injection. No exploit chain. Just an HTTP request the backend forgot to validate.

That’s exactly why business-logic bugs slip through: teams test that the button is disabled, not that the endpoint rejects the call. A disabled button is UI — never a security control.

Full write-up by Moaz Abdelaty, Jr. Pe*******on Tester @ CYBERVULN LLC :

https://www.cybervuln.com/blog/bypassing-plan-based-user-seat-limits-via-unprotected-invite-endpoint

*******onTesting

No system is 100% secure. That is not a disclaimer — it is the starting point of the job.Code ships. New subdomains go l...
07/30/2026

No system is 100% secure. That is not a disclaimer — it is the starting point of the job.

Code ships. New subdomains go live. Vendors change configurations. Infrastructure evolves every day. None of that cares whether you passed an audit last quarter.

Security isn't something you finish. It's something you continuously maintain.

During the first half of 2026, our team notified more than 500 organizations of security exposures affecting their external attack surfaces.

Twenty of those organizations chose to continue working with CyberVuln LLC across external attack surface management, pe*******on testing, and continuous security monitoring.

We're extending the same opportunity to a limited number of companies.

The first five companies to apply will receive a free external attack surface assessment.

No contracts. No commitments. The findings are yours to keep.

Apply here:
https://www.cybervuln.com/free-audit

🚀 CyberVuln Internship Program is Now OpenAt CyberVuln, we’re building the next generation of cybersecurity talent.We’re...
05/01/2026

🚀 CyberVuln Internship Program is Now Open

At CyberVuln, we’re building the next generation of cybersecurity talent.
We’re opening applications for a hands-on Pe*******on Testing Internship designed for individuals who are serious about learning, growing, and working on real-world targets.

🔍 What you’ll gain:
- Practical experience in reconnaissance & vulnerability discovery
- Exposure to real-world targets and workflows
- Guidance and mentorship from experienced security researchers
- A structured path to improve your bug hunting mindset

🛠 What we’re looking for:
- Basic understanding of web security (XSS, SQLi, etc.)
- Passion for bug bounty and pe*******on testing
- Commitment and consistency
- Willingness to learn and work in a team

🌟 Top performers will be considered for future opportunities with CyberVuln.
📅 Duration: 2 Months
🌍 Remote
If you’re ready to level up your skills and be part of something bigger, apply now:

👉 https://docs.google.com/forms/d/e/1FAIpQLSch8sC-skJ0Woo476M8RsElca-B_2wvKGD4lwUGWx-RYsQ_zg/viewform

*******onTesting

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217 1ST Avenue S
Seattle, WA

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+201016144202

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