This could allow a malicious actor to force higher privileged users to execute unwanted actions under their current authentication.
CVSS score is a way to evaluate and rank reported vulnerabilities in a standardized and repeatable way but which is not ideal for WordPress.
This security issue has a low severity impact and is unlikely to be exploited.
Update to version 140219 or later to resolve the vulnerability. Patchstack users can turn on auto-update for vulnerable plugins only.