The EmbedPress WordPress plugin before 4.6.4 does not perform a sufficient authorization check on one of its Google Reviews REST API routes, allowing users with the Contributor role and above to modify a site-wide store, deleting entries an administrator configured and injecting their own, which are rendered publicly across the site.
https://wpscan.com/vulnerability/12984501-5d93-4941-9e12-6bb8049bd23d/