This indicates an attack attempt to exploit a Cross-Site Scripting Vulnerability in Zoho Corporation ManageEngine OpManager.
The vulnerability is due to an error in the vulnerable application when handling a maliciously crafted request. A remote attacker can exploit this to execute arbitrary script code within the context of the user's browser.
Zoho Corporation ManageEngine OpManager before 12.3.169
System Compromise: Remote attackers can gain control of vulnerable systems.
Apply the most recent upgrade or patch from the vendor: