This indicates an attack attempt to exploit an Arbitrary File Upload Vulnerability in Zeta Producer Desktop CMS.
The vulnerability is due to an error in the vulnerable application when handling a file upload request without authentication. A remote unauthenticated attacker may be able to exploit this to upload arbitrary files and perform remote code execution within the context of the application, via uploading a malicious file.
Zeta Producer Desktop CMS version 14.2.0 and prior
System Compromise: Remote attackers can gain control of vulnerable systems.
Apply the most recent upgrade or patch from the vendor.