CVE-2026-9004

The WP-CRM System – Manage Clients and Projects plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 3.4.6 via the 'contact_id' parameter. This makes it possible for authenticated attackers, with contributor-level access and above, to extract full names, email addresses, phone numbers, mobile numbers, fax numbers, and physical address information of arbitrary CRM contact records by enumerating the contact_id parameter.

• https://plugins.trac.wordpress.org/browser/wp-crm-system/tags/3.4.6/includes/wcs-dashboard-address-book.php#L12
• https://plugins.trac.wordpress.org/browser/wp-crm-system/tags/3.4.6/includes/wcs-dashboard-address-book.php#L33
• https://plugins.trac.wordpress.org/browser/wp-crm-system/tags/3.4.6/includes/wcs-dashboard-address-book.php#L75
• https://www.wordfence.com/threat-intel/vulnerabilities/id/f506a9bd-2501-4437-938d-2833fc8545a9?source=cve