CVE-2026-75586: Unlimited Elements For Elementor <= 2.0.17 - Reflected Cross-Site Scripting via 'formData[id]' Parameter
The Unlimited Elements For Elementor plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via 'formData[id]' Parameter in all versions up to, and including, 2.0.17 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. The front-end AJAX handler is registered on the public 'wp' action with no nonce, capability, or referer check, and the raw attacker-controlled id value is interpolated verbatim into an exception message that is echoed back without escaping; when the response is served as text/html rather than application/json, the browser parses the injected markup.
Affected Software
Event History
Frequently Asked Questions
Who can exploit this issue?
Any unauthenticated remote attacker can submit a crafted formData[id] value to the plugin's public front-end AJAX handler. Exploitation requires convincing a user to perform an action such as clicking an attacker-controlled link.
Are default access controls sufficient to prevent exploitation?
No. The affected handler is registered publicly and has no nonce, capability, or referer check, so authentication and WordPress permissions do not protect this endpoint.
What is required for the injected script to execute?
The attacker-controlled value must be reflected in a response served as text/html rather than application/json. In that condition, the browser parses injected markup and can execute the supplied script.
How can I determine whether my site is affected?
Sites using Unlimited Elements For Elementor version 2.0.17 or earlier are affected according to the available data. Review plugin version inventory and look for requests to the public front-end AJAX functionality containing a formData[id] parameter with unexpected markup or script-like content.