Overview

Grey-box testing sits between a blind external attack and a full source-code review: our tester gets a standard user account, the same as any customer or employee would have, and works from there. That mirrors the most common real-world scenario — an attacker who has phished a low-level credential or signed up for a free account.

We cover the OWASP Top 10 as a baseline, then go further into business-logic flaws that automated scanners consistently miss — the kind of bugs that only show up when someone tries to break the workflow on purpose.

What’s included

  • Authentication, session management & access-control testing
  • API-specific checks — broken object-level authorization, mass assignment, rate limiting
  • Business-logic abuse testing (price manipulation, workflow bypass)
  • Manual verification of every automated finding before it reaches your report
root@bytesencrypt: web-api-vapt
$recon target.com/api
> 42 endpoints discovered
$test IDOR --endpoint /users/{id}
> object-level auth bypass confirmed
> severity: HIGH — logged for triage
 

Ready to scope a Web & API VAPT engagement?

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