» About | 20kilograma

• 20/yo from Germany
• Fullstack Dev
• Web Security Engineer
• CTF Player
• Sports/Videogames enjoyer

» Blogs/Write-ups and Research

> (CVE-2025-55182) - React2Shell Overview

> OOP in JavaScript & some differences from the other languages

> PHP (detailed 2024) - its security, vulnerable code examples & improvement

> Nullcon-CTF [2023] Web Challenges Writeup

» HackTheBox (HTB)

> Machine - HackNet

> Machine - CodePartTwo

» CVEs

> CVE-2026-78262

> CVE-2026-78284

> CVE-2026-73996

> CVE-2026-73358

> CVE-2026-73355

> CVE-2026-32549

> CVE-2025-32227

> CVE-2025-31386

> CVE-2024-13518