Vertex Addons for Elementor <= 1.6.4 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Plugin Installation and Activation via 'afeb_activate_required_plugins'
Summary
| CVE | CVE-2026-4326 |
|---|---|
| State | PUBLISHED |
| Assigner | Wordfence |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-04-09 02:16:16 UTC |
| Updated | 2026-04-13 15:02:47 UTC |
| Description | The Vertex Addons for Elementor plugin for WordPress is vulnerable to Missing Authorization in all versions up to and including 1.6.4. This is due to improper authorization enforcement in the activate_required_plugins() function. Specifically, the current_user_can('install_plugins') capability check does not terminate execution when it fails — it only sets an error message variable while allowing the plugin installation and activation code to execute. The error response is only sent after the installation and activation have already completed. This makes it possible for authenticated attackers, with Subscriber-level access and above, to install and activate arbitrary plugins from the WordPress. |
Risk And Classification
Primary CVSS: v3.1 8.8 HIGH from [email protected]
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.000940000 probability, percentile 0.262230000 (date 2026-04-15)
Problem Types: CWE-862 | CWE-862 CWE-862 Missing Authorization
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 8.8 | HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| 3.1 | CNA | DECLARED | 8.8 | HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Webilia | Vertex Addons For Elementor | affected 1.6.4 semver | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| plugins.trac.wordpress.org/browser/addons-for-elementor-builder/trunk/app/Ajax.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/addons-for-elementor-builder/trunk/app/Ajax.php | [email protected] | plugins.trac.wordpress.org | |
| www.wordfence.com/threat-intel/vulnerabilities/id/1bb409f0-ccbd-4dfa-b097-b29ee... | [email protected] | www.wordfence.com | |
| plugins.trac.wordpress.org/browser/addons-for-elementor-builder/tags/1.6.4/app/Ajax.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/changeset | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/addons-for-elementor-builder/trunk/app/Ajax.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/addons-for-elementor-builder/trunk/app/Ajax.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/addons-for-elementor-builder/tags/1.6.4/app/Ajax.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/addons-for-elementor-builder/tags/1.6.4/app/Ajax.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/addons-for-elementor-builder/tags/1.6.4/app/Ajax.php | [email protected] | plugins.trac.wordpress.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Athiwat Tiprasaharn (en)
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| CNA | 2026-03-23T23:52:28.000Z | Vendor Notified |
| CNA | 2026-04-08T00:00:00.000Z | Disclosed |
There are currently no legacy QID mappings associated with this CVE.