CVE-2024-2079 is a stored cross-site scripting vulnerability in the WPBakery Page Builder Addons by Livemesh WordPress plugin, specifically in the 'per_line_mobile' shortcode. The issue is caused by improper neutralization of input during web page generation, allowing authenticated users with contributor-level or higher privileges to inject malicious scripts via insufficiently sanitized shortcode attributes. These scripts execute in the context of any user who accesses the compromised page, potentially leading to session hijacking or other script-based attacks. The vulnerability affects all plugin versions up to 3.8.1. The CVSS 3.1 base score is 6.4 (medium severity), reflecting network attack vector, low attack complexity, and limited privileges required.

An attacker with contributor-level or higher permissions can inject persistent malicious scripts into pages using the vulnerable shortcode. These scripts execute in the browsers of users who view the infected pages, potentially compromising user sessions or performing unauthorized actions within the context of the affected site. The impact is limited to confidentiality and integrity loss; availability is not affected. There are no reports of active exploitation in the wild.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict contributor-level permissions to trusted users only and consider disabling or removing the vulnerable shortcode if feasible. Monitor official Livemesh communications for updates regarding patches or mitigations.