CVE-2026-54675

High

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.

SeverityHigh
CVSS8.8
Exploit probability—
ProductSangoma Freepbx
PublishedSep 28, 2026
First seenSep 28, 2026

How to fix

Update
  • sangoma freepbx16.0.10, 17.0.5 or later

Affected products

ProductAffected versionsFixed in
sangoma freepbx16.0 ≤ v < 16.0.10, 17.0 ≤ v < 17.0.516.0.10, 17.0.5

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