CVE-2026-4140: Ni WooCommerce Order Export <= 3.1.6 - Cross-Site Request Forgery to Settings Update via ni_order_export_action AJAX Action

The Ni WooCommerce Order Export plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to and including 3.1.6. This is due to missing nonce validation in the niorderexportaction() AJAX handler function. The handler processes settings updates when the 'page' parameter is set to 'nioe-order-settings', delegating to NiOrderSetting::pageajax() which calls updateoption('niorderexportoption', $REQUEST) without verifying any nonce or checking user capabilities. This makes it possible for unauthenticated attackers to modify the plugin's settings via a forged request, granted they can trick a site administrator into performing an action such as clicking a link.