On April 10 we detailed for our customers an arbitrary file upload vulnerability that had been in the plugin Zielke Specialized Catalog and some of the odd circumstances surrounding that. A week later a new version of the plugin was released that restores the vulnerability, which we noticed through our proactive monitoring of changes made to plugins in the Plugin Directory to try to catch serious vulnerabilities, and again it isn’t clear exactly what was going on there.
This post provides the details of a vulnerability in the WordPress plugin Zielke Specialized Catalog not discovered by us, where the discoverer hadn’t provided the details needed for us to confirm the vulnerability while we were adding it to the data set for our service, so its contents are limited to subscribers of our service. If you are not currently a subscriber, you can try out the service for free and then you can view the contents of the post. There are a lot of other reason that you will want to sign up beyond access to posts like this one, including that you would have already been warned about this vulnerability if your website was vulnerable due to it.