EUVD-2026-42228
GHSA-9w6j-2h2h-p5h5
Severity by source
AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
PR:L reflects required Author-level authentication; UI:R because a victim must visit the injected page for the stored payload to fire; S:C and C:L/I:L capture cross-context browser script execution.
Primary rating from Vendor (Wordfence).
CVSS VectorVendor: Wordfence
Lifecycle Timeline
2DescriptionCVE.org
The Essential Addons for Elementor - Popular Elementor Templates & Widgets plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Event Calendar widget in all versions up to, and including, 6.6.2 due to insufficient input sanitization and output escaping on event titles sourced from The Events Calendar. 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.
AnalysisAI
Stored Cross-Site Scripting in Essential Addons for Elementor (versions up to and including 6.6.2) allows authenticated WordPress users with Author-level access or higher to inject persistent malicious JavaScript via event titles rendered through the Event Calendar widget. The injected payload executes in the browsers of any user who visits the affected page, with scope change confirmed by the CVSS:3.1 S:C designation. No public exploit code or CISA KEV listing has been identified at time of analysis, but the authentication barrier is low on sites that permit contributor or author registration.
Technical ContextAI
The vulnerability resides in the Event Calendar widget bundled with the Essential Addons for Elementor plugin (CPE: cpe:2.3:a:wpdevteam:essential_addons_for_elementor_-_popular_elementor_templates_&_widgets:*:*:*:*:*:*:*:*), a widely-used Elementor extension for WordPress. The widget consumes event title data sourced from The Events Calendar plugin but fails to apply adequate input sanitization before storage or context-appropriate output escaping before HTML rendering. This is a textbook CWE-79 (Improper Neutralization of Input During Web Page Generation) defect: attacker-controlled data enters a trusted storage layer without sanitization and later exits into the DOM without encoding, giving an attacker full JavaScript execution in victims' browsing sessions. The scope change (S:C) in the CVSS vector reflects that the injected payload crosses from the WordPress application security context into the browser context of visiting users.
RemediationAI
A patch has been committed to the official WordPress plugin repository as confirmed by Trac changeset 3519453 (https://plugins.trac.wordpress.org/changeset/3519453/essential-addons-for-elementor-lite); the exact released version number is not independently confirmed from the available input data, so administrators should update to the latest available version of Essential Addons for Elementor via the WordPress dashboard or WP-CLI and verify that the installed version exceeds 6.6.2. As a compensating control where immediate patching is not possible, disabling the Event Calendar widget within Essential Addons for Elementor or restricting Author-level account creation and event-editing permissions will eliminate the attack surface; note that disabling the widget removes Event Calendar display functionality from affected pages. Sites using role-management plugins should audit which user roles can create or modify events in The Events Calendar.
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External POC / Exploit Code
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