Medium severity · published Sep 8, 2026
CVE-2026-18021
Beaver Builder Page Builder <= 2.10.3.1 - Unauthenticated Arbitrary Shortcode Execution
6.5
CVSS
0.5%
EPSS
No
On KEV
Description
The The Beaver Builder Page Builder – Drag and Drop Website Builder plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 2.10.3.1. This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for unauthenticated attackers to execute arbitrary shortcodes.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 39% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BB
Beaver Builder Page Builder – Drag and Drop Website Builder · beaverbuilder
through 2.10.3.1 · source: vendor
Affected product
BB
Beaver Builder Page Builder – Drag and Drop Website Builder
beaverbuilder
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-18021
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-18021
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/beaver-builder-lite-version/trunk/classes/class-fl-builder.php#L2018
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/changeset/3645247/beaver-builder-lite-version/tags/2.10.3.2
www.wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/95f2af83-2667-49e1-8890-99559cd90ec4?source=cve
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