WordPress Ninja Forms plugin before 3.3.18 contains a cross-site scripting vulnerability. An attacker can inject arbitrary script in includes/Admin/Menus/Submissions.php via the begin_date, end_date, or form_id parameters. This can allow an attacker to steal cookie-based authentication credentials and launch other attacks.
View the template here CVE-2018-19287.yaml
References:
https://nvd.nist.gov/vuln/detail/CVE-2018-19287