WordPress security changelog
HIGH CVE-2026-75921 Deferred

Master Addons permits Editor-level arbitrary file upload

Master Addons through 3.1.9 protects its upload_template_kit() AJAX handler with upload_files rather than manage_options. Editors can obtain the localized nonce from the Pages list, submit a template-kit ZIP, and exploit the lack of per-entry file-type filtering after extraction to place potentially executable files on the server.

CVE / CNA score 7.2 CVSS 3.1 · security@wordfence.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
Master Addons for Elementor – Elementor Addons, Widgets, Mega Menu Builder, Popup Builder, Widget Builder & Template Kits
Plugin slug
master-addons
Affected
<= 3.1.9
Safe version
See mitigation notes
Published
Sep 01, 2026
Weakness
CWE-863 — Incorrect Authorization

This CVE was published Sep 01, 2026 and is one of 27 known issues for this plugin.

What to do

Update, patch or deactivate.

Update to a confirmed release newer than 3.1.9 when available. Until then, restrict Editor access or disable template-kit imports when warranted, inspect uploaded files, and review the site for unauthorized code.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical description

The Master Addons for Elementor – Elementor Addons, Widgets, Mega Menu Builder, Popup Builder, Widget Builder & Template Kits plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 3.1.9 via the upload_template_kit function. This is due to incorrect authorization on the upload_template_kit() AJAX handler, which requires only upload_files capability instead of the manage_options required by all sibling handlers, combined with missing per-entry file type filtering after ZIP extraction. This makes it possible for authenticated attackers, with editor-level access and above, to upload files that may be executable, which makes remote code execution possible. Editors can satisfy the nonce requirement because the required nonces are localized on the standard Pages list screen, which is accessible to any user with the edit_pages capability.

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

References

Primary and upstream sources