Medium severity · published Sep 5, 2026
CVE-2026-18843
Beaver Builder Plugin (Pro Version) <= 2.11.0.1 - Reflected Cross-Site Scripting via 'no_results_message' node_preview Parameter
6.1
CVSS
0.3%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 21% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BB
Beaver Builder Plugin (Starter Version) · The Beaver Builder Team
through 2.11.0.1 · source: vendor
Affected product
BB
Beaver Builder Plugin (Starter Version)
The Beaver Builder Team
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-18843
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-18843
www.wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/074c95bb-c68e-452d-bd2e-c44866aeedba?source=cve
www.wpbeaverbuilder.com
https://www.wpbeaverbuilder.com/
More from Beaver Builder Plugin (Starter Version)
7.2
CVE-2025-4102
Beaver Builder Plugin (Starter Version) <= 2.9.1 - Authenticated (Administrator+) Arbitrary File Upload
5.4
CVE-2025-8427
Beaver Builder Plugin (Starter Version) <= 2.9.2.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'auto_play'