CVE-2021-4404 Event Espresso 4 Decaf <= 4.10.11 - Cross-Site Request Forgery Bypass

The Event Espresso 4 Decaf plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 4.10.11. This is due to missing or incorrect nonce validation on the ajaxHandler function. This makes it possible for unauthenticated attackers to op into notifications vi...