King Addons for Elementor <= 51.1.38 - Authenticated (Contributor+) DOM-Based Stored Cross-Site Scripting via Multiple Widgets
The King Addons for Elementor plugin for WordPress is vulnerable to multiple Contributor+ DOM-Based Stored Cross-Site Scripting vulnerabilities in all versions up to, and including, 51.1.38. This is due to insufficient input sanitization and output escaping across multiple widgets and features. The plugin uses esc_attr() and esc_url() within JavaScript inline event handlers (onclick attributes), which allows HTML entities to be decoded by the DOM, enabling attackers to break out of the JavaScript context. Additionally, several JavaScript files use unsafe DOM manipulation methods (template literals, .html(), and window.location.href with unvalidated URLs) with user-controlled data. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts via Elementor widget settings that execute when a user accesses the injected page or when an administrator previews the page in Elementor's editor. The vulnerability was partially patched in version 5.1.51.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| WordPress plugin | King Addons for Elementor – 100+ Elementor Widgets, 4 000+ Elementor Templates, WooCommerce Builder, Mega Menu, Popup Builder | <= 51.1.53 | 51.1.54 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N- Weakness (CWE)
CWE-79- Platform
- WordPress
- Package
King Addons for Elementor – 100+ Elementor Widgets, 4 000+ Elementor Templates, WooCommerce Builder, Mega Menu, Popup Builder- Disclosed
- 31.03.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
Wordfence Intelligence - 95d3e76c-612d-436c-9d32-6228d7dcbf35 - Wordfence Intelligence
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Copyright 2012-2026 Defiant Inc.
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Vulnerability history: King Addons for Elementor – 100+ Elementor Widgets, 4 000+ Elementor Templates, WooCommerce Builder, Mega Menu, Popup Builder
All published vulnerabilities of this package (WordPress plugin), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 19
- First → latest
- 03.2025 09.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 3
- Medium 16
Disclosures per year
- 2025: 7
- 2026: 12
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King Addons for Elementor <= 51.1.38 - Authenticated (Contributor+) DOM-Based Stored Cross-Site Scripting via Multiple Widgets this entry
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