CVE-2026-4326 json
Vertex Addons for Elementor <= 1.6.4 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Plugin Installation and Activation via 'afeb_activate_required_plugins'
published 2026-04-09 7 mo ago modified 2026-07-24 3 mo ago also EUVD-2026-20825
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 48%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 7 mo ago
Exploit prediction
0.59% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
- webilia Vertex Addons for Elementor
Classification
- Weakness
-
- CWE-862 Missing Authorization
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/1bb409f0-ccbd-4dfa-b097-b29ee539daa3?source=cve
- plugins.trac.wordpress.org /browser/addons-for-elementor-builder/trunk/app/Ajax.php#L264
- plugins.trac.wordpress.org /browser/addons-for-elementor-builder/tags/1.6.4/app/Ajax.php#L264
- plugins.trac.wordpress.org /browser/addons-for-elementor-builder/trunk/app/Ajax.php#L278
- plugins.trac.wordpress.org /browser/addons-for-elementor-builder/tags/1.6.4/app/Ajax.php#L278
- plugins.trac.wordpress.org /browser/addons-for-elementor-builder/trunk/app/Ajax.php#L229
- plugins.trac.wordpress.org /browser/addons-for-elementor-builder/tags/1.6.4/app/Ajax.php#L229
- plugins.trac.wordpress.org /browser/addons-for-elementor-builder/trunk/app/Ajax.php#L232
- plugins.trac.wordpress.org /browser/addons-for-elementor-builder/tags/1.6.4/app/Ajax.php#L232
- plugins.trac.wordpress.org /changeset?sfp_email=&sfph_mail=&reponame=&old=3491143%40addons-for-elementor-builder&new=3491143%40addons-for
Sources
- CVE List CVE-2026-4326
- NVD CVE-2026-4326
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.