The aDirectory – WordPress Directory Listing Plugin plugin for WordPress is vulnerable to unauthorized loss of data due to a missing capability check on the adqs_delete_listing() function in all versions up to, and including, 2.3. This makes it possible for authenticated attackers, with Subscriber-level access and above, to delete arbitrary posts.
https://plugins.trac.wordpress.org/browser/adirectory/tags/2.1/inc/Frontend/Ajax.php#L113
https://plugins.trac.wordpress.org/browser/adirectory/tags/1.9.5/inc/Frontend/Ajax.php#L115
https://plugins.trac.wordpress.org/browser/adirectory/tags/1.3.4/inc/Frontend/Ajax.php#L115