PT-2026-31563 · Webilia · Vertex Addons For Elementor

Athiwat Tiprasaharn · Published 2026-04-09 · Updated 2026-04-09 · CVE-2026-4326

NVD

CVSS v3.1

8.8

High

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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.

Fix

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

CVE-2026-4326

Affected Products

Vertex Addons For Elementor

References · 13

• https://nvd.nist.gov/vuln/detail/CVE-2026-4326 · Security Note
• https://plugins.trac.wordpress.org/browser/addons-for-elementor-builder/trunk/app/Ajax.php#L229 · Note
• https://twitter.com/VulmonFeeds/status/2042100937427124337 · Twitter Post
• https://wordfence.com/threat-intel/vulnerabilities/id/1bb409f0-ccbd-4dfa-b097-b29ee539daa3?source=cve · Note
• https://plugins.trac.wordpress.org/browser/addons-for-elementor-builder/tags/1.6.4/app/Ajax.php#L229 · Note
• https://plugins.trac.wordpress.org/browser/addons-for-elementor-builder/tags/1.6.4/app/Ajax.php#L278 · Note
• https://plugins.trac.wordpress.org/browser/addons-for-elementor-builder/trunk/app/Ajax.php#L232 · Note
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3491143%40addons-for-elementor-builder&new=3491143%40addons-for-elementor-builder&sfp_email=&sfph_mail= · Note
• https://plugins.trac.wordpress.org/browser/addons-for-elementor-builder/trunk/app/Ajax.php#L278 · Note
• https://twitter.com/CveFindCom/status/2042101513368064252 · Twitter Post
• https://plugins.trac.wordpress.org/browser/addons-for-elementor-builder/tags/1.6.4/app/Ajax.php#L264 · Note
• https://plugins.trac.wordpress.org/browser/addons-for-elementor-builder/tags/1.6.4/app/Ajax.php#L232 · Note
• https://plugins.trac.wordpress.org/browser/addons-for-elementor-builder/trunk/app/Ajax.php#L264 · Note