CVE-2026-4326

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.

The following products are affected by CVE-2026-4326 vulnerability.

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Here, you will find a curated list of external links that provide in-depth information to CVE-2026-4326.

URL	Resource
https://plugins.trac.wordpress.org/browser/addons-for-elementor-builder/tags/1.6.4/app/Ajax.php#L229
https://plugins.trac.wordpress.org/browser/addons-for-elementor-builder/tags/1.6.4/app/Ajax.php#L232
https://plugins.trac.wordpress.org/browser/addons-for-elementor-builder/tags/1.6.4/app/Ajax.php#L264
https://plugins.trac.wordpress.org/browser/addons-for-elementor-builder/tags/1.6.4/app/Ajax.php#L278
https://plugins.trac.wordpress.org/browser/addons-for-elementor-builder/trunk/app/Ajax.php#L229
https://plugins.trac.wordpress.org/browser/addons-for-elementor-builder/trunk/app/Ajax.php#L232
https://plugins.trac.wordpress.org/browser/addons-for-elementor-builder/trunk/app/Ajax.php#L264
https://plugins.trac.wordpress.org/browser/addons-for-elementor-builder/trunk/app/Ajax.php#L278
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=
https://www.wordfence.com/threat-intel/vulnerabilities/id/1bb409f0-ccbd-4dfa-b097-b29ee539daa3?source=cve