The LambertGroup Universal Video Player Addon for WPBakery Page Builder (up to version 3.2.1) contains a reflected Cross-site Scripting (XSS) vulnerability due to improper input neutralization during web page generation. This vulnerability allows attackers to inject malicious scripts that execute when a victim interacts with crafted web content, potentially compromising user data and session integrity. The CVSS 3.1 base score is 7.1, reflecting network attack vector, low attack complexity, no privileges required, user interaction required, scope changed, and low impacts on confidentiality, integrity, and availability. No patch or official remediation guidance is currently available from the vendor.

Successful exploitation of this reflected XSS vulnerability can allow attackers to execute arbitrary scripts in the context of the victim's browser session, potentially leading to theft of sensitive information, session hijacking, or other malicious actions impacting confidentiality, integrity, and availability to a limited extent. The CVSS score of 7.1 indicates a high severity but with user interaction required and low impact on system-wide availability.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should consider implementing web application firewall (WAF) rules to detect and block reflected XSS attempts and educate users to avoid interacting with suspicious links. Monitor LambertGroup communications for updates and apply patches promptly once available.