🤖 Attackers exploited a critical flaw in Collabora Online's Built-in CODE Server app to backdoor Nextcloud servers with web shells, executing commands with web server rights. First attack logged Sept 10; three admins reported it on GitHub. 🔗 https://thehackernews.com/2026/10/hackers-backdoor-nextcloud-servers.html #Exploit #Nextcloud #CyberSec #InfoSec