Exploiting Monsta FTP: Technical Analysis of CVE-2025-34299
CVE-2025-34299 is a critical vulnerability in Monsta FTP, a web-based file transfer tool, unauthenticated arbitrary file write via remote download leading to remote code execution (RCE). Affecting versions 2.11 and earlier, it enables attackers to upload malicious files via a crafted SFTP or FTP connection, compromising servers without credentials. This flaw has seen active exploitation through opportunistic scans. By January 2026, Vulnerable instances remain exposed.