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CVE-2026-54675— FreePBX: Authenticated Remote Code Execution via File Upload and Convert in Soundlang Module

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 是一款开源的 IP PBX 系统。在 16.0.10 和 17.0.5 版本之前，其声音语言上传与转换功能中存在一个关键漏洞，允许经过身份认证的攻击者执行任意文件写入操作，从而直接导致远程代码执行（RCE）。利用此漏洞需要提供已知的用户名进行身份认证。该漏洞的根源在于文件转换过程中路径净化不足，攻击者可借此实施路径穿越攻击，将恶意的 PHP 文件写入 Web 服务器的根目录。该问题已在 16.0.10 和 17.0.5 版本中得到修复。

CVSS 8.7 · High

Affected Version Matrix 2

VendorProduct Version RangeStatus
FreePBX security-reporting < 16.0.10 affected
< 17.0.5 affected
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I. Basic Information for CVE-2026-54675

Vulnerability Information
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Vulnerability Title
FreePBX: Authenticated Remote Code Execution via File Upload and Convert in Soundlang Module
Source: CVE Program / CVE List V5
Vulnerability Description
FreePBX is an open source IP PBX. Prior to versions 16.0.10 and 17.0.5, a critical vulnerability exists in the sound language upload and conversion functionality that allows an authenticated attacker to perform arbitrary file writes, leading directly to remote code execution (RCE). Authentication with a known username is required. The vulnerability stems from insufficient path sanitization in the file conversion process, enabling path traversal attacks that place malicious PHP files in the web server's root directory. This issue has been patched in versions 16.0.10 and 17.0.5.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
FreePBX security-reporting < 16.0.10 -

II. Public POCs for CVE-2026-54675

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III. Intelligence Information for CVE-2026-54675

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Other References for CVE-2026-54675 (1)

Same Patch Batch · FreePBX · 2026-09-28 · 6 CVEs total

CVE-2026-75600 8.6 HIGH FreePBX: Authenticated API generatedocs Host Command Injection
CVE-2026-54710 8.6 HIGH FreePBX: Authenticated Superfecta Arbitrary PHP Code Execution (RCE via Unsafe File Inclus
CVE-2026-54708 8.6 HIGH Authenticated Remote Code Execution via Path Traversal in FreePBX Backup Module
CVE-2026-54674 8.6 HIGH Authenticated Command Injection in FreePBX UCP Interface
CVE-2026-45562 7.7 HIGH FreePBX: Authenticated Remote Code Execution in FreePBX Music on Hold (MoH) Module

IV. Related Vulnerabilities

Same product: security-reporting
Same vendor: FreePBX
Same weakness: CWE-22

V. Comments for CVE-2026-54675

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