4 Nov 2019

Closures of Very Popular WordPress Plugins, Week of November 1

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.

During the week of November 1, four of those plugins were closed. [Read more]

4 Nov 2019

Recently Closed WordPress Plugin with 70,000+ Installs Contains Authenticated Persistent XSS Vulnerability

The plugin Easy Columns was closed on the WordPress Plugin Directory on Sunday of last week. That is one of the 1,000 most popular plugins with 70,000+ 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 an authenticated persistent cross-site scripting (XSS) after looking at results that our Plugin Security Checker produced for the plugin.

An example of that issue involves the plugin’s ezcol_1quarter shortcode, which calls the function one_quarter(): [Read more]