This vulnerability (CVE-2026-57754) is classified as CWE-79, indicating improper neutralization of input during web page generation, resulting in cross-site scripting (XSS). It affects Livemesh Addons for WPBakery Page Builder versions up to and including 3.9.4. The issue allows a contributor-level user to inject malicious scripts that may be executed in the context of other users, potentially impacting confidentiality, integrity, and availability. The CVSS 3.1 base score is 6.5 (medium), with network attack vector, low attack complexity, required privileges at the contributor level, user interaction required, and scope changed. There is no vendor advisory or patch information available at this time.

Successful exploitation could allow an attacker with contributor privileges to execute arbitrary scripts in the context of other users, potentially leading to partial disclosure of information, modification of data, or disruption of service. The impact affects confidentiality, integrity, and availability but is limited by the required privileges and user interaction.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, limit contributor privileges and monitor for suspicious activity related to script injection. Avoid granting contributor access to untrusted users.