CVE-2026-34889 | Brainstorm Force Ultimate Addons for WPBakery Page Builder Plugin up to 3.21.3 on WordPress cross site scripting

VDB-354628 · CVE-2026-34889 · GCVE-0-2026-34889 BRAINSTORM FORCE ULTIMATE ADDONS FOR WPBAKERY PAGE BUILDER PLUGIN UP TO 3.21.3 ON WORDPRESS CROSS SITE SCRIPTING HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 4.9 $0-$5k 5.85+ Summaryinfo A vulnerability categorized as problematic has been discovered in Brainstorm Force Ultimate Addons for WPBakery Page Builder Plugin up to 3.21.3 on WordPress. Affected is an unknown function. Executing a manipulation can lead to cross site scripting. This vulnerability appears as CVE-2026-34889. The attack may be performed from remote. There is no available exploit. It is advisable to upgrade the affected component. Detailsinfo A vulnerability classified as problematic was found in Brainstorm Force Ultimate Addons for WPBakery Page Builder Plugin up to 3.21.3 on WordPress. This vulnerability affects an unknown functionality. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. CVE summarizes: 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. The weakness was presented by Bonds. The advisory is shared for download at patchstack.com. This vulnerability was named CVE-2026-34889 since 03/31/2026. The exploitation appears to be easy. The attack can be initiated remotely. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007. Upgrading to version 3.21.4 eliminates this vulnerability. Productinfo Type WordPress Plugin Vendor Brainstorm Force Name Ultimate Addons for WPBakery Page Builder Plugin Version 3.21.0 3.21.1 3.21.2 3.21.3 CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 5.0 VulDB Meta Temp Score: 4.9 VulDB Base Score: 3.5 VulDB Temp Score: 3.4 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 6.5 CNA Vector (Patchstack): 🔒 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Cross site scripting CWE: CWE-79 / CWE-94 / CWE-74 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: Ultimate Addons for WPBakery Page Builder Plugin 3.21.4 Timelineinfo 03/31/2026 CVE reserved 04/01/2026 +1 days Advisory disclosed 04/01/2026 +0 days VulDB entry created 04/01/2026 +0 days VulDB entry last update Sourcesinfo Advisory: patchstack.com Researcher: Bonds Status: Confirmed CVE: CVE-2026-34889 (🔒) GCVE (CVE): GCVE-0-2026-34889 GCVE (VulDB): GCVE-100-354628 Entryinfo Created: 04/01/2026 11:29 Changes: 04/01/2026 11:29 (66) Complete: 🔍 Cache ID: 99:BE4:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸