This indicates an attack attempt to exploit a Path Traversal vulnerability in Total.js CMS.
The vulnerability is due to insufficient sanitizing of user supplied inputs in the application when handling requests with JSON data. A remote attacker may be able to exploit this to access or execute web page in arbitrary locations on the systems, leading to possible remote code execution.
Total.js CMS 12.0.0
System Compromise: Remote attackers can gain control of vulnerable systems.
Currently we are unaware of any vendor supplied patch or update for this issue.