An attacker may be able to bypass the OS application filter meant to restrict applications that can be executed by changing browser preferences to launch a separate process that in turn can execute arbitrary commands.
https://support.hp.com/us-en/document/c06509350
http://seclists.org/fulldisclosure/2020/Mar/37
http://packetstormsecurity.com/files/156898/HP-ThinPro-6.x-7.x-Filter-Bypass.html