Unlike any other data sources on vulnerabilities in WordPress plugins that we are aware of, we actually test out claimed vulnerabilities when adding them to our data set (though as Wordfence shows, people will lie about doing that sort of thing). That involves a fair amount of work, but it provides much better results as other data sources will falsely claim that vulnerabilities that haven’t been fixed have been fixed and includes false reports of vulnerabilities. One issue that has been coming up on a more frequent basis recently when doing that testing has been dealing with issues that vary with the test environment.
One of the things we do to keep track of vulnerabilities in WordPress plugins to provide our customers with the best data on vulnerabilities in the plugins they use is to monitor the WordPress Support Forum for topics that might relate to those. Through that we came across an authenticated settings change vulnerability that can permit persistent cross-site scripting (XSS) in the plugin WP Google Maps, which considering the plugin has 400,000+ install, is something that would be of interest to hackers.