Yesterday we disclosed an arbitrary file upload related vulnerability discovered through our proactive monitoring of changes made to plugins in the Plugin Directory to try to catch serious vulnerabilities for which the underlying vulnerable code ran despite the user interface for it being disabled. That turns out to not be a one-off issue as our proactive monitoring has also led to us finding an authenticated arbitrary file upload vulnerability in the plugin Events Made Easy where the user interface also appears to be missing. This is a good reminder of the limits of trying to look for vulnerabilities without looking at the underlying code of software.
Due to the moderators of the WordPress Support Forum’s continued inappropriate behavior we are full disclosing vulnerabilities in protest until WordPress gets that situation cleaned up, so we are releasing this post and then only trying to notify the developer through the WordPress Support Forum. You can notify the developer of this issue on the forum as well. Hopefully the moderators will finally see the light and clean up their act soon, so these full disclosures will no longer be needed (we hope they end soon). You would think they would have already done that since a previously full disclosed vulnerability was quickly on hackers’ radar, but it appears those moderators have such disdain for the rest of the WordPress community that their continued ability to act inappropriate is more important that what is best for the rest of the community. [Read more]