The GeoDirectory plugin for WordPress is vulnerable to SQL Injection via the stored latitude/longitude coordinates of a listing in versions up to, and including, 2.8.186. This is due to insufficient escaping and the absence of numeric validation on coordinate values when a listing is saved, combined with the direct string interpolation of those values into a distance sub-expression in geodir_gps_query_part() that is later executed by the public wp_ajax_nopriv_geodir_widget_listings handler when a caller supplies set_post=<pending-listing-id> and sort_by=distance_asc. This makes it possible for authenticated attackers, with Subscriber-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
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