CVE-2025-66250

An unauthenticated attacker can upload arbitrary files to the upgrade_contents.php endpoint in Mozart FM Transmitter. Missing signature validation allows malicious firmware injection, potentially leading to remote code execution.

An unauthenticated attacker can use the deleteupgrade parameter in upgrade_contents.php to delete arbitrary files in /var/www/upload/ without extension or path sanitization, potentially removing critical system files.

The start_upgrade.php endpoint passes user-controlled filename directly to exec() without sanitization. An unauthenticated attacker can inject arbitrary shell commands, achieving remote code execution as the web server user (likely root).

An unauthenticated attacker can exploit the deletehidden parameter to perform path traversal and delete arbitrary .tgz files on the Mozart FM Transmitter.

The Mozart FM Transmitter web management interface on version WEBMOZZI-00287 contains an unauthenticated file upload vulnerability in the /upload_file.php endpoint. An attacker can exploit this by sending a crafted POST request with a malicious file (e.g., a PHP webshell) to the server. The uploaded file is stored in the /upload/ directory, enabling remote code execution and full system compromise.