Search: CVE-2025-66208

CVE-2025-66208 is a high-severity OS command injection vulnerability affecting Collabora Online's built-in CODE Server (richdocumentscode proxy) in versions prior to 25.04.702. This flaw allows unauthenticated remote attackers to execute arbitrary OS commands via the proxy.php interface, particularly when used with Nextcloud and an intermediate reverse proxy. The vulnerability arises from improper neutralization of special elements in OS commands (CWE-78). No user interaction or privileges are required, and the vulnerability has not yet been observed exploited in the wild. The issue is fixed in version 25.04.702.