The Search Atlas SEO WordPress plugin before 2.6.12 does not perform a capability or nonce check in one of its AJAX handlers, allowing any authenticated user such as a Subscriber to invoke the site's Google Indexing API integration, submitting or removing the site's URLs from Google's index and consuming its indexing quota.
https://wpscan.com/vulnerability/a347a7a8-36d6-4806-8781-a9ae8eb94788/