PT-2026-43543 · Livemesh · Livemesh Wpbakery Page Builder Addons

Published 2026-05-27 · Updated 2026-05-27 · CVE-2026-2030

Mitre

CVSS v3.1

6.4

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

The WPBakery Page Builder Addons by Livemesh plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the [lvca carousel] and [lvca posts carousel] shortcode attributes in all versions up to, and including, 3.9.4 due to insufficient input sanitization and output escaping. Specifically, shortcode attributes are encoded with wp json encode() and output into single-quoted data-settings HTML attributes without using esc attr(), allowing attackers to break out of the attribute by injecting single quotes. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-2030

Affected Products

Livemesh Wpbakery Page Builder Addons

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-2030 · Security Note
• https://plugins.trac.wordpress.org/browser/addons-for-visual-composer/tags/3.9.4/includes/addons/carousel/class-lvca-carousel.php#L55 · Note
• https://wordfence.com/threat-intel/vulnerabilities/id/ac1493dc-a90a-4427-a631-af5da65e1d6c?source=cve · Note
• https://plugins.trac.wordpress.org/browser/addons-for-visual-composer/tags/3.9.4/includes/addons/posts-carousel/class-lvca-posts-carousel.php#L113 · Note