Compromised WordPress Plugins Notice Mentioned Version that does not exist

I’m getting an email notice stating that CleanTalk has detected that the site uses vulnerable plugins. The problem is that the notice refers to problems with versions of Woody Code Snippets before 3.3.1. The current version of the Woody Code Snippets plugin is 2.75. Where are you finding a version 3.3.1 of this code?

“Woody code snippets – Insert Header Footer Code, AdSense AdsCVE-2017-20251, Versions before 3.3.1 very high”

Is this a false positive, a database error, or is 3.3.1 not the version of the plugin itself?