liveSite v2019.1 was discovered to contain a remote code execution (RCE) vulenrabiity via the component /livesite/edit_designer_region.php or /livesite/add_email_campaign.php.
https://www.exploit-db.com/exploits/51936
https://packetstormsecurity.com/files/176420/liveSite-2019.1-Remote-Code-Execution.html