---
id: CVE-2026-18843
title: >-
  The Beaver Builder Plugin (Starter Version) plugin for WordPress is vulnerable
  to Reflected Cross-Site Scripting via 'no_results_message' node_preview
  Parameter in all versions up to, and including, 2.11.0.1 due to insufficient
  input san…
summary: >-
  The Beaver Builder Plugin (Starter Version) plugin for WordPress is vulnerable
  to Reflected Cross-Site Scripting via 'no_results_message' node_preview
  Parameter in all versions up to, and including, 2.11.0.1 due to insufficient
  input san…
severity: medium
cvss: 6.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
published: '2026-09-05'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T13:12:58.310'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-18843'
references:
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/074c95bb-c68e-452d-bd2e-c44866aeedba?source=cve
    label: security@wordfence.com
  - url: 'https://www.wpbeaverbuilder.com/'
    label: security@wordfence.com
tags:
  - nvd
epss: 0.00168
epssPercentile: 0.05379
ingestedAt: '2026-09-06T02:48:41.448Z'
---

## Overview

The Beaver Builder Plugin (Starter Version) plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via 'no_results_message' node_preview Parameter in all versions up to, and including, 2.11.0.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.