Medium severity · published Aug 15, 2026
CVE-2026-17090
Beaver Builder Page Builder <= 2.10.2.2 - Authenticated (Author+) Stored Cross-Site Scripting via Button Module 'button' Parameter
6.4
CVSS
0.4%
EPSS
No
On KEV
Description
The Beaver Builder Page Builder – Drag and Drop Website Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Button Module 'button' (Button Code) Setting in all versions up to, and including, 2.10.2.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Beaver Builder grants editor access to any WordPress role holding the edit_posts capability by default, meaning Author-level users and above can exploit this vulnerability.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 35% 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 2.10.2.2 · source: vendor
Affected product
BB
Beaver Builder Page Builder – Drag and Drop Website Builder
beaverbuilder
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-17090
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-17090
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/beaver-builder-lite-version/tags/2.10.1.5/classes/class-fl-builder-model.php#L4659
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/beaver-builder-lite-version/tags/2.10.1.5/modules/button/button.php#L341
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/beaver-builder-lite-version/tags/2.10.1.5/modules/button/includes/frontend.js.php#L8
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/beaver-builder-lite-version/tags/2.10.2.2/classes/class-fl-builder-model.php#L4659
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/beaver-builder-lite-version/tags/2.10.2.2/modules/button/button.php#L341
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/beaver-builder-lite-version/tags/2.10.2.2/modules/button/includes/frontend.js.php#L8
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