Telenia TVox 26.5.3 OS Command Injection via action_audio.php

Telenia Software TVox 26.5.3 and prior 26.x versions, and 24.9.21 and prior 24.x versions, contain an OS command injection vulnerability in action_audio.php that allows authenticated attackers to execute arbitrary operating system commands by passing an unsanitized pid parameter into an exec() call when the action parameter is set to checkProcess. Attackers can inject malicious OS commands through the pid request parameter to execute arbitrary commands with the privileges of the apache user.