Executive brief
WP Directory Kit is a WordPress plugin used to create and manage online directories. An authenticated subscriber can exploit a SQL injection vulnerability in the plugin's AJAX handler to extract sensitive data from the WordPress database, including password hashes and other confidential information, without requiring administrator approval or special permissions.
Technical details
The WP Directory Kit plugin before version 1.5.5 contains a SQL injection vulnerability in its authenticated AJAX action `ajax_save_order` within the `wdk_fields` page. The `data_fields_list` parameter is not sanitized or escaped before being used in a SQL statement. The vulnerable AJAX endpoint lacks authorization and nonce checks, allowing any authenticated user, including a Subscriber (the lowest privilege level), to execute arbitrary SQL queries. Attackers can perform blind time-based SQL injection attacks to extract database contents such as password hashes and other sensitive data. The vulnerability is fixed in version 1.5.5.
Affected products
- WP Directory Kit WP Directory Kit before 1.5.5
Timeline
- 2026-08-03: disclosed
- 2026-08-08: patched