This vulnerability involves improper neutralization of input in the WordPress Event Manager, Event Calendar and Booking Plugin (eventin-pro), which allows stored cross-site scripting attacks. An attacker with low privileges can inject malicious scripts that execute when other users view the affected pages, potentially leading to partial confidentiality, integrity, and availability impacts. The issue affects all versions up to 4.0.24. The CVSS 3.1 vector indicates network attack vector, low attack complexity, low privileges required, user interaction required, and scope changed with low impacts on confidentiality, integrity, and availability.

Successful exploitation could allow an attacker to execute arbitrary scripts in the context of the affected site, potentially leading to partial disclosure of information, modification of data, or disruption of service. The impact is limited by the requirement for user interaction and the need for the attacker to have low privileges on the system. No known active exploitation has been reported.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, administrators should consider restricting user input capabilities and applying web application firewall (WAF) rules to detect and block XSS payloads related to this plugin. Monitor vendor channels for updates and apply patches promptly once released.