CVE-2026-3897mediumCWE-862

CVE-2026-3897: medium-severity vulnerability in Livemesh Addons for Beaver Builder

Livemesh Addons for Beaver Builder <= 3.9.2 - Authenticated (Subscriber+) Stored Cross-Site Scripting via Missing Authorization

Published

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13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6.4epss 0.2%
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Affected products
livemesh · Livemesh Addons for Beaver Builder
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