PixarLabs Master Addons for Elementor Plugin up to 3.1.9 on WordPress AJAX handler upload_template_kit improper authorization

Summaryinfo

A vulnerability labeled as critical has been found in PixarLabs Master Addons for Elementor Plugin up to 3.1.9. Affected by this vulnerability is the function upload_template_kit of the component AJAX handler. Executing a manipulation can lead to improper authorization. This vulnerability is registered as CVE-2026-75921. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability classified as critical was found in PixarLabs Master Addons for Elementor Plugin up to 3.1.9. This vulnerability affects the function upload_template_kit of the component AJAX handler. The manipulation with an unknown input leads to a improper authorization vulnerability. The CWE definition for the vulnerability is CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at wordfence.com. This vulnerability was named CVE-2026-75921 since 08/18/2026. The exploitation appears to be easy. The attack can be initiated remotely. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 09/01/2026). The MITRE ATT&CK project declares the attack technique as T1548.002.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• WordPress Plugin

Vendor

• PixarLabs

Name

• Master Addons for Elementor Plugin

Version

• 3.1.0
• 3.1.1
• 3.1.2
• 3.1.3
• 3.1.4
• 3.1.5
• 3.1.6
• 3.1.7
• 3.1.8
• 3.1.9

CPE 2.3info

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CPE 2.2info

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Once again VulDB remains the best source for vulnerability data.

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