King Addons for Elementor <= 51.1.38 - Authenticated (Contributor+) DOM-Based Stored Cross-Site Scripting via Multiple Widgets

Summary

CVECVE-2025-13535
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-01 15:16:21 UTC
Updated2026-04-01 15:16:21 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 6.4 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

EPSS: 0.000560000 probability, percentile 0.178460000 (date 2026-04-02)

Problem Types: CWE-79 | CWE-79 CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')


VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary6.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
3.1CNADECLARED6.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Kingaddons King Addons For Elementor 80 Elementor Widgets 4 000 Elementor Templates WooCommerce Mega Menu Popup Builder affected 51.1.53 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/king-addons/tags/51.1.38/includes/widgets/Pricing_Cal... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/king-addons/tags/51.1.38/includes/widgets/Off_Canvas_... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/king-addons/tags/51.1.38/includes/features/Wrapper_Li... [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/95d3e76c-612d-436c-9d32-6228d... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/king-addons/tags/51.1.38/includes/widgets/Image_Accor... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/king-addons/tags/51.1.38/includes/widgets/Countdown/s... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/king-addons/tags/51.1.38/includes/widgets/Popup/Popup... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/changeset/3441952 [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/changeset/3438067 [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/king-addons/tags/51.1.38/includes/assets/libraries/li... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/king-addons/tags/51.1.38/includes/widgets/Video_Popup... [email protected] plugins.trac.wordpress.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Craig Smith (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-03-31T00:00:00.000ZDisclosed
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