The Hero Mega Menu - Responsive WordPress Menu Plugin suffers from a reflected cross-site scripting vulnerability (CWE-79) due to improper input neutralization during web page generation. This allows an attacker to inject malicious scripts that could be executed in the context of a victim's browser. The CVSS 3.1 base score is 7.1, indicating high severity, with network attack vector, low attack complexity, no privileges required, user interaction needed, and impacts on confidentiality, integrity, and availability. The issue affects versions through 1.16.5. There is no vendor advisory or patch available at this time.

Successful exploitation could allow an attacker to execute arbitrary scripts in the context of the affected website, potentially leading to data theft, session hijacking, or other malicious actions impacting confidentiality, integrity, and availability of the site and its users. The vulnerability requires user interaction and can be exploited remotely without authentication.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a patch is released, users should consider disabling or replacing the plugin to mitigate risk. Implementing web application firewall (WAF) rules to detect and block reflected XSS attempts may provide temporary protection.