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CVE-2026-28209— FreePBX: Command Injection leading to Remote Code Execution in FreePBX ElevenLabs Text-to-Speech integration

Quick assessment

Affected
FreePBX security-reporting
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 16.0.20之前版本和17.0.5之前版本存在操作系统命令注入漏洞，该漏洞源于recordings模块中使用ElevenLabs文本转语音引擎时存在命令注入，可能导致命令注入攻击。

AI Predicted 9.1 Difficulty: Easy EPSS 1.45% · P73

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-28209

Vulnerability Information
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Vulnerability Title
FreePBX: Command Injection leading to Remote Code Execution in FreePBX ElevenLabs Text-to-Speech integration
Source: CVE Program / CVE List V5
Vulnerability Description
FreePBX is an open source IP PBX. From versions 16.0.17.2 to before 16.0.20 and from version 17.0.2.4 to before 17.0.5, a command injection vulnerability exists in FreePBX when using the ElevenLabs Text-to-Speech (TTS) engine in the recordings module. This issue has been patched in versions 16.0.20 and 17.0.5.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
FreePBX 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FreePBX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 16.0.20之前版本和17.0.5之前版本存在操作系统命令注入漏洞，该漏洞源于recordings模块中使用ElevenLabs文本转语音引擎时存在命令注入，可能导致命令注入攻击。
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 security-reporting >= 16.0.17.2, < 16.0.20 -

II. Public POCs for CVE-2026-28209

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III. Intelligence Information for CVE-2026-28209

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Vendor Advisories for CVE-2026-28209 (1)

Same Patch Batch · FreePBX · 2026-03-05 · 4 CVEs total

CVE-2026-28284 FreePBX: Authenticated SQL Injection Vulnerabilities in FreePBX Logfiles Module
CVE-2026-28287 FreePBX: Authenticated Remote Code Execution via Recordings Module AJAX Endpoints
CVE-2026-28210 FreePBX: Authenticated SQL Injection in CDR (Call Data Record) Reports

IV. Related Vulnerabilities

Same product: security-reporting
Same vendor: FreePBX
Same weakness: CWE-78

V. Comments for CVE-2026-28209

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