CVE-2026-16774

The CVE-2026-16774 entry concerns the WordPress Chatbot plugin vulnerable to Missing Authorization via the wpcs_send_email() AJAX handler in versions up to and including 8.5.9. The wpcs_send_email() function is registered for both wp_ajax_wpcs_send_email and wp_ajax_nopriv_wpcs_send_email without...

CVE-2026-16774 WPBot <= 8.5.9 - Missing Authorization to Unauthenticated Email Relay via wpcs_send_email AJAX Action

The Chatbot plugin for WordPress is vulnerable to Missing Authorization in versions up to, and including, 8.5.9 via the wpcssendemail AJAX handler. This is due to the wpcssendemail function being registered on both wpajaxwpcssendemail and wpajaxnoprivwpcssendemail with no nonce verification,...