Wondershare PDFelement 5.2.9 contains a privilege escalation vulnerability due to an unquoted service path in the WsAppService Windows service. Local attackers can place a malicious executable in the service path and execute code with LocalSystem privileges upon service restart or system reboot.
https://www.exploit-db.com/exploits/40535
http://download.wondershare.com/inst/pdfelement_setup_full1042.exe