Export Import Menus < 1.9.0 - Authenticated (Subscriber+) Arbitrary File Upload

Description

The Export Import Menus plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the uploadMenusJson() function in versions up to, and including, 1.8.0. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to upload arbitrary files on the affected site's server which may make remote code execution possible.