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CVE-2025-55209— FreePBX UCP is Vulnerable to Stored XSS Through its User Control Panel

Quick assessment

Affected
FreePBX contactmanager
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

FreePBX（前称Asterisk Management Portal）是FreePBX项目的一套通过GUI（基于网页的图形化接口）配置Asterisk（IP电话系统）的工具。 FreePBX contactmanager存在跨站脚本漏洞，该漏洞源于存储型跨站脚本漏洞可能导致会话劫持和权限提升。以下版本受到影响：15.0.14及之前版本、16.0.0至16.0.26.4版本和17.0.0至17.0.5版本。

AI Predicted 8.1 Difficulty: Easy EPSS 0.36% · P27
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I. Basic Information for CVE-2025-55209

Vulnerability Information
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Vulnerability Title
FreePBX UCP is Vulnerable to Stored XSS Through its User Control Panel
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
FreePBX 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FreePBX（前称Asterisk Management Portal）是FreePBX项目的一套通过GUI（基于网页的图形化接口）配置Asterisk（IP电话系统）的工具。 FreePBX contactmanager存在跨站脚本漏洞，该漏洞源于存储型跨站脚本漏洞可能导致会话劫持和权限提升。以下版本受到影响：15.0.14及之前版本、16.0.0至16.0.26.4版本和17.0.0至17.0.5版本。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
FreePBX contactmanager < 15.0.14 -

II. Public POCs for CVE-2025-55209

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III. Intelligence Information for CVE-2025-55209

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Vendor Advisories for CVE-2025-55209 (1)

IV. Related Vulnerabilities

Same vendor: FreePBX
Same weakness: CWE-79

V. Comments for CVE-2025-55209

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