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CVE-2026-4326

HIGH

8.8

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.

CVE Details

CVSS v3.1 Score8.8

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published4/9/2026

Last Modified4/9/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-862

References

https://plugins.trac.wordpress.org/browser/addons-for-elementor-builder/tags/1.6.4/app/Ajax.php#L229(security@wordfence.com)

https://plugins.trac.wordpress.org/browser/addons-for-elementor-builder/tags/1.6.4/app/Ajax.php#L232(security@wordfence.com)

https://plugins.trac.wordpress.org/browser/addons-for-elementor-builder/tags/1.6.4/app/Ajax.php#L264(security@wordfence.com)

https://plugins.trac.wordpress.org/browser/addons-for-elementor-builder/tags/1.6.4/app/Ajax.php#L278(security@wordfence.com)

https://plugins.trac.wordpress.org/browser/addons-for-elementor-builder/trunk/app/Ajax.php#L229(security@wordfence.com)

https://plugins.trac.wordpress.org/browser/addons-for-elementor-builder/trunk/app/Ajax.php#L232(security@wordfence.com)

https://plugins.trac.wordpress.org/browser/addons-for-elementor-builder/trunk/app/Ajax.php#L264(security@wordfence.com)

https://plugins.trac.wordpress.org/browser/addons-for-elementor-builder/trunk/app/Ajax.php#L278(security@wordfence.com)

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=(security@wordfence.com)

https://www.wordfence.com/threat-intel/vulnerabilities/id/1bb409f0-ccbd-4dfa-b097-b29ee539daa3?source=cve(security@wordfence.com)

IOC Correlations

No correlations recorded

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