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The Directory Listings WordPress plugin – uListing plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 2.2.0. This is due to the stmlistingprofileedit AJAX action not having enough restriction on the user meta that can be updated. This makes it possible for authenticated attackers, with Subscriber-level access and above, to elevate their privileges to that of an administrator.
The Directory Listings WordPress plugin – uListing plugin for WordPress is vulnerable to unauthorized modification of data and PHP Object Injection due to a missing capability check on the stmlistingajax AJAX action in all versions up to, and including, 2.2.0. This makes it possible for authenticated attackers, with subscriber-level access and above, to update post meta data and inject PHP Objects that may be unserialized. A capability check was added in 2.1.8, but the unserialize is still present.