medium.com/tag/ctf-writeup· Oct 23, 2026· by BeshoyBypassing a Space Filter with ${IFS}Open Original Article ↗📋 Copy Report☆ Save BookmarkContinue reading on Medium »🎯 Vulnerability: Web Security Vulnerability💡 Defense Fix: Implement strict input validation, contextual output encoding, and enforce least-privilege authorization controls.#cybersecurity#ctf-writeup#tryhackme-writeup#linux