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© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2026-3897

23
FAUCET Score

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.

First published: May 27, 2026Last modified: May 27, 2026

Impacted Technologies

VendorProductVersion(s)CPE
>= 0, <= 3.9.2CPE match
cpe:2.3:a:livemesh:livemesh_addons_for_beaver_builder:*:*:*:*:*:wordpress:*:*

CVSS Data

CVSS version used by this source: 3.1

6.4MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.1
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.22%
Probability of exploitation in next 30 days
EPSS Percentile
13.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0022 is in the 13th percentile among its peer group of 21,951 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

plugins.trac.wordpress.org / browser/addons-for-beaver-builder/tags/3.9.2/admin/admin-ajax.php
plugins.trac.wordpress.org / browser/addons-for-beaver-builder/tags/3.9.2/admin/views/settings.php
plugins.trac.wordpress.org / browser/addons-for-beaver-builder/tags/3.9.2/includes/helper-functions.php
wordfence.com / threat-intel/vulnerabilities/id/8bc41c61-1d8a-445f-bd70-3b14a40c89d4