CVE-2025-55209: FreePBX Contactmanager

Medium severity, CVSS 5.1. EPSS: 0.4% chance of exploitation in the next 30 days.

contactmanager is a module for FreePBX@, which is an open source GUI that controls and manages Asterisk© (PBX). In versions 15.0.14 and below, 16.0.0 through 16.0.26.4 and 17.0.0 through 17.0.5, a stored cross-site scripting (XSS) vulnerability in FreePBX allows a low-privileged User Control Panel (UCP) user to inject malicious JavaScript into the system. The malicious code executes in the context of an administrator when they interact with the affected component, leading to session hijacking and potential privilege escalation. This issue is fixed in versions 15.0.14, 16.0.27 and 17.0.6.

Affected products

• FreePBX Contactmanager: before 15.0.14 (fixed in 15.0.14); from 16.0.0, before 16.0.27 (fixed in 16.0.27); from 17.0.0, before 17.0.6 (fixed in 17.0.6)

Published 2025-09-04. Last modified 2026-06-17.