CVE-2026-9281

Deferred Deferred - Pending Action

Stored XSS in Master Addons for Elementor WordPress Plugin

Publication date: 2026-06-06

Last updated on: 2026-06-08

Assigner: Wordfence

Description

The Master Addons For Elementor – Widgets, Extensions, Theme Builder, Popup Builder & Template Kits plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'jtlma_custom_js' Page Setting (Custom JS Extension) in all versions up to, and including, 3.1.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The unfiltered_html capability check is only enforced during Elementor control registration (UI rendering) and not during the save process, enabling Author-level users to inject the jtlma_custom_js setting directly via a crafted POST request to admin-ajax.php?action=elementor_ajax, bypassing the UI-level restriction entirely.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-06-06

Last Modified

2026-06-08

Generated

2026-07-17

AI Q&A

2026-06-06

EPSS Evaluated

2026-07-15

NVD

CVE-2026-9281

EUVD

EUVD-2026-34940

Affected Vendors & Products

Vendor	Product	Version / Range
master_addons	master_addons_for_elementor	to 3.1.0 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-79	The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

Executive Summary

The vulnerability exists in the Master Addons For Elementor WordPress plugin, specifically in versions up to and including 3.1.0. It is a Stored Cross-Site Scripting (XSS) flaw that occurs via the 'jtlma_custom_js' Page Setting (Custom JS Extension). This happens because the plugin does not properly sanitize input or escape output. Authenticated users with author-level access or higher can inject arbitrary JavaScript code into pages. This injected script executes whenever any user accesses the affected page.

The vulnerability is worsened by the fact that the usual capability check (unfiltered_html) is only enforced during the UI rendering of Elementor controls, not during the save process. This allows attackers to bypass UI restrictions by sending crafted POST requests directly to admin-ajax.php, enabling injection without using the UI.

Impact Analysis

This vulnerability can allow an attacker with author-level access to inject malicious JavaScript code into WordPress pages. When other users visit these pages, the malicious scripts will execute in their browsers. This can lead to theft of user credentials, session hijacking, defacement, or distribution of malware.

Because the attack requires author-level access, it may be limited to environments where such users exist or where accounts have been compromised. However, the impact on confidentiality and integrity is significant, as indicated by the CVSS score of 6.4 with low attack complexity but requiring privileges.

Hi! I’m here to help you understand CVE-2026-9281. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70