Vulnerability 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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/addons-for-elementor-builder/tags/1.6
- https://plugins.trac.wordpress.org/browser/addons-for-elementor-builder/tags/1.6
- https://plugins.trac.wordpress.org/browser/addons-for-elementor-builder/tags/1.6
- https://plugins.trac.wordpress.org/browser/addons-for-elementor-builder/tags/1.6
- https://plugins.trac.wordpress.org/browser/addons-for-elementor-builder/trunk/ap
- https://plugins.trac.wordpress.org/browser/addons-for-elementor-builder/trunk/ap
- https://plugins.trac.wordpress.org/browser/addons-for-elementor-builder/trunk/ap
- https://plugins.trac.wordpress.org/browser/addons-for-elementor-builder/trunk/ap
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old
- https://www.wordfence.com/threat-intel/vulnerabilities/id/1bb409f0-ccbd-4dfa-b09
FAQ
What is CVE-2026-4326?
CVE-2026-4326 is a vulnerability with a CVSS score of 8.8 (HIGH). 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...
How severe is CVE-2026-4326?
CVE-2026-4326 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-4326?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.