Livemesh Addons for Beaver Builder <= 3.9.2 - Authenticated (Subscriber+) Stored Cross-Site Scripting via Missing Authorization
Published May 27, 2026
6.4
MEDIUMCVSS 3.1
EPSS 0.30%
Description
The Livemesh Addons for Beaver Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `labb_admin_ajax` AJAX action in all versions up to, and including, 3.9.2 due to missing authorization checks and insufficient input sanitization. The AJAX handler verifies a nonce but does not check user capabilities. This makes it possible for authenticated attackers with Subscriber-level access and above to modify plugin settings and inject malicious scripts that execute when administrators access the plugin settings page or when any user visits the frontend.
Affected products
-
- Version 0StatusaffectedConstraints<=3.9.2
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Livemesh | Livemesh Addons for Beaver Builder | unaffected |
|
No data.
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
References (5)
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-32101 Advisory
- https://plugins.trac.wordpress.org/browser/addons-for-beaver-builder/tags/3.9.2/admin/admin-ajax.php#L64
- https://plugins.trac.wordpress.org/browser/addons-for-beaver-builder/tags/3.9.2/admin/views/settings.php#L137
- https://plugins.trac.wordpress.org/browser/addons-for-beaver-builder/tags/3.9.2/includes/helper-functions.php#L248
- https://www.wordfence.com/threat-intel/vulnerabilities/id/8bc41c61-1d8a-445f-bd70-3b14a40c89d4?source=cve
Change history (0)
No recorded changes yet.