This indicates an attack attempt to exploit a Directory Traversal vulnerability in HPE Moonshot Provisioning Manager Appliance.
The vulnerability is due to insufficient sanitizing of user supplied inputs in the application. A remote attacker may be able to exploit this to overwrite arbitrary files in specific directories, leading to a denial of service condition on the affected system.
HPE Moonshot Provisioning Manager Appliance prior to and including v1.20
Denial of Service: Remote attackers can crash vulnerable systems.
Refer to the vendor's advisory for updates: