This indicates an attack attempt to exploit a File Upload Vulnerability in WprdPress Ajax Load More.
The vulnerability is due to an input validation error while parsing a crafted HTTP request. A remote attacker could exploit this to execute arbitrary code within the context of the target application, via a crafted HTTP request.
Valid login authentication is required to exploit this vulnerability.
WordPress Ajax Load More version 126.96.36.199 and prior
System Compromise: Remote attackers can gain control of vulnerable systems.
Apply the most recent upgrade or patch from the vendor.