Boolean-based Blind SQLi with Division-based Extraction

Hi guys, today I will teach you how to exploit Boolean-based Blind SQL Injection. This is a technique I recently used on a penetration test to extract database usernames without any direct output from the application. This one is a bit tricky because you are essentially flying blind. The app does not show you query results, error messages, or anything useful. All you get is a subtle difference in the response: data or no data. But that tiny difference? That is all you need. ...

January 20, 2026 · 8 min · 0xblivion

BSCP Certified: Stuck for an Hour, Done in Two

After a weeks of preparation, countless PortSwigger labs, and more caffeine than I’d like to admit, I finally passed the Burp Suite Certified Practitioner (BSCP) exam. Here’s everything you need to know about the exam, my preparation strategy, and what to expect on exam day. Why the BSCP? The BSCP is one of the most respected practical certifications in web application security. Unlike multiple-choice exams that test memorization, this one throws you into a live environment where you have to actually exploit vulnerabilities. No guessing your way through. You either pop the shell or you don’t. ...

January 7, 2026 · 7 min · 0xblivion