SuiteCRM before 7.11.19 allows remote code execution via the system settings Log File Name setting. In certain circumstances involving admin account takeover, logger_file_name can refer to an attacker-controlled PHP file under the web root, because only the all-lowercase PHP file extensions were blocked. NOTE: this issue exists because of an incomplete fix for CVE-2020-28328.
https://theyhack.me/SuiteCRM-RCE-2/
https://suitecrm.com/time-to-upgrade-suitecrm-7-11-19-7-10-30-lts-released/
https://docs.suitecrm.com/admin/releases/7.11.x/#_7_11_19
http://packetstormsecurity.com/files/165001/SuiteCRM-7.11.18-Remote-Code-Execution.html