20 Sep 2019

Closures of Very Popular WordPress Plugins, Week of September 20

While we already are far ahead of other companies in keeping up with vulnerabilities in WordPress plugins (amazingly that isn’t an exaggeration), in looking in to how we could get even better we noticed that in a recent instance were a vulnerability was exploited in a plugin, we probably could have warned our customers about the vulnerability even sooner if we had looked at the plugin when it was first closed on the Plugin Directory instead of when the vulnerability was fixed (though as far as we are aware the exploitation started after we had warned our customers of the fix). So we are now monitoring to see if any of the 1,000 most popular plugins are closed on the Plugin Directory and then seeing if it looks like that was due to a vulnerability.

This week two of those plugins were closed. [Read more]

19 Sep 2019

Recently Closed WordPress Plugin with 100,000+ Installs Contains Reflected XSS Vulnerability

The plugin Click to Chat was closed on the WordPress Plugin Directory today. That is one of the 1,000 most popular plugins with 100,000+ installs, so we were alerted to its closure. While we were looking in to the plugin to see if there were any serious vulnerabilities we should be warning users of the plugin that also use our service, we found that it contains a reflected cross-site scripting (XSS) vulnerability.

In a reminder of the general insecurity of WordPress plugins that vulnerability appears unrelated to the cause of the closure, as there was a change made to the plugin since its closure which involved renaming the plugin from Click to Chat for WhatsApp. [Read more]