CVE-2019-16966: FreePBX Contactmanager

Medium severity, CVSS 6.1. EPSS: 1.1% chance of exploitation in the next 30 days.

An issue was discovered in Contactmanager 13.x before 13.0.45.3, 14.x before 14.0.5.12, and 15.x before 15.0.8.21 for FreePBX 14.0.10.3. In the Contactmanager class (html\admin\modules\contactmanager\Contactmanager.class.php), an unsanitized group variable coming from the URL is reflected in HTML on 2 occasions, leading to XSS. It can be requested via a GET request to /admin/ajax.php?module=contactmanager.

Affected products

• FreePBX Contactmanager: from 13.0.2, before 13.0.45.3 (fixed in 13.0.45.3); from 14.0.1.1, before 14.0.5.12 (fixed in 14.0.5.12); from 15.0.2, before 15.0.8.21 (fixed in 15.0.8.21); version 13.0.0 only; version 14.0.1 only
• Sangoma FreePBX: version 14.0.10.3 only

Published 2019-10-21. Last modified 2026-06-17.