Medium severity · published Apr 1, 2026
CVE-2026-34889
WordPress Ultimate Addons for WPBakery Page Builder plugin < 3.21.4 - Cross Site Scripting (XSS) vulnerability
6.5
CVSS
0.2%
EPSS
No
On KEV
Description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Brainstorm Force Ultimate Addons for WPBakery Page Builder allows DOM-Based XSS.This issue affects Ultimate Addons for WPBakery Page Builder: from n/a before 3.21.4.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 7% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
UA
Ultimate Addons for WPBakery Page Builder · Brainstorm Force
before 3.21.4 · source: vendor
Affected product
UA
Ultimate Addons for WPBakery Page Builder
Brainstorm Force
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-34889
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-34889
patchstack.com
https://patchstack.com/database/wordpress/plugin/ultimate_vc_addons/vulnerability/wordpress-ultimate-addons-for-wpbakery-page-builder-plugin-3-21-4-cross-site-scripting-xss-vulnerability?_s_id=cve
More from Ultimate Addons for WPBakery Page Builder
6.5
CVE-2026-28038
WordPress Ultimate Addons for WPBakery Page Builder plugin <= 3.21.1 - Broken Access Control vulnerability
6.5
CVE-2025-48088
WordPress Ultimate Addons for WPBakery Page Builder plugin < 3.21.1 - Cross Site Scripting (XSS) vulnerability