CVE-2026-6459: WPDeveloper Essential Addons for Elementor Stored XSS in Event Calendar

CVE-2026-6459 · Severity: medium · CVSS 6.4 · Published 2026-07-08

Essential Addons for Elementor is a popular WordPress plugin used to add custom design elements and widgets to websites. A security flaw in its Event Calendar widget allows users with 'Author' level permissions or higher to inject malicious scripts into website pages. When other users or visitors view these pages, the scripts can execute, potentially leading to unauthorized actions or data theft.

Technologies: WPDeveloper Essential Addons for Elementor. Vendors: WPDeveloper.

Quick answers

Is CVE-2026-6459 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-6459 being exploited in the wild.
How severe is CVE-2026-6459?
Medium severity, with a CVSS score of 6.4, published 8 July 2026.
Which products and versions are affected?
WPDeveloper Essential Addons for Elementor up to, and including, 6.6.2.
Is there a fix for CVE-2026-6459?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-6459 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2026-6459?
Check whether you run WPDeveloper Essential Addons for Elementor at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A Stored Cross-Site Scripting (XSS) vulnerability exists in the Essential Addons for Elementor plugin due to insufficient input sanitization and output escaping on event titles sourced from 'The Events Calendar' within the Event Calendar widget. The vulnerability is classified as CWE-79. An authenticated attacker with Author-level privileges or higher can inject malicious JavaScript into event titles. Because the plugin fails to properly neutralize this input before it is rendered on the page, the script executes in the context of any user's browser who views the calendar. This can lead to session hijacking or unauthorized administrative actions if a site administrator views the page. A fix was introduced in version 6.6.3 (implied by the changeset reference).

Affected products

  • WPDeveloper (wpdevteam) Essential Addons for Elementor – Popular Elementor Templates & Widgets up to, and including, 6.6.2

Timeline

  • 2026-07-08: advisory: Published by Wordfence and NVD

References

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