CVE-2026-5243: POSIMYTH The Plus Addons for Elementor stored XSS in Navigation Menu Lite

CVE-2026-5243 · Severity: medium · CVSS 6.4 · Published 2026-05-14

The Plus Addons for Elementor, a popular WordPress plugin used for building custom website layouts and menus, contains a security flaw in its Navigation Menu Lite widget. This vulnerability allows users with contributor-level access or higher to inject malicious scripts into website pages. When other users, including site administrators or visitors, view these pages, the scripts will execute in their browsers, potentially leading to unauthorized actions or data theft.

Technologies: POSIMYTH Innovations The Plus Addons for Elementor. Vendors: POSIMYTH Innovations.

Quick answers

Is CVE-2026-5243 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-5243 being exploited in the wild.
How severe is CVE-2026-5243?
Medium severity, with a CVSS score of 6.4, published 14 May 2026.
Which products and versions are affected?
POSIMYTH Innovations The Plus Addons for Elementor Up to, and including, 6.4.11.
Is there a fix for CVE-2026-5243?
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-2026-5243 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2026-5243?
Check whether you run POSIMYTH Innovations The Plus 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

The Plus Addons for Elementor plugin for WordPress is vulnerable to Stored Cross-Site Scripting (XSS) due to insufficient input sanitization and output escaping on the 'menu_hover_click' parameter within the Navigation Menu Lite widget. This vulnerability exists in all versions up to and including 6.4.11. An authenticated attacker with contributor-level permissions or higher can inject arbitrary web scripts into a page. These scripts will execute in the context of any user's browser who visits the affected page. The issue was addressed in version 6.4.12 by implementing proper sanitization and escaping functions.

Affected products

  • POSIMYTH Innovations The Plus Addons for Elementor Up to, and including, 6.4.11

Timeline

  • 2026-05-14: disclosed
  • 2026-05-14: advisory

References

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