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We recently noticed an authenticated arbitrary file upload vulnerability in the plugin Vmax Project Manager. While writing up the details of that we were tracing back the code that would be involved in that and at first we couldn’t figure out how part of it would work. Then we figured that out and noticed that there is also an authenticated local file inclusion (LFI) vulnerability in the plugin.
A month ago we wrote about how the security review of newly submitted plugins to the WordPress Plugin Directory needs improvement. One of the newly introduced plugins that lead to that was the plugin Vmax Project Manager. We came across the plugin through our proactive monitoring of changes made to plugins to try to catch serious vulnerabilities, due to the possibility of an arbitrary file upload vulnerability in the plugin.