This vulnerability in Rock Solid Responsive Modal Builder for High Conversion – Easy Popups (<= 1.5.0) is due to improper neutralization of input during web page generation, resulting in a reflected cross-site scripting (XSS) flaw. An attacker could exploit this by crafting a malicious link that, when visited by a user, executes arbitrary scripts in the context of the victim's browser session. The CVSS v3.1 base score is 7.1, indicating high severity with network attack vector, low attack complexity, no privileges required, user interaction required, scope changed, and impacts on confidentiality, integrity, and availability.

Successful exploitation can lead to partial compromise of confidentiality, integrity, and availability of the affected system or user data through execution of arbitrary scripts in the victim's browser. This can facilitate actions such as session hijacking, defacement, or denial of service. However, 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, users should exercise caution with untrusted input and links involving this plugin. Monitor vendor channels for updates and apply patches promptly once released.