What’s Vulnerable › Vulnerabilities
CVE-2026-54675: FreePBX: Authenticated Remote Code Execution via File Upload and Convert in Soundlang Module
- Severity: high (CVSS 8.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.7% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-09-28 · updated 2026-10-16
- Weakness: CWE-22
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.
Affected products
- Sangoma FreePBX: from 16.0 before 16.0.10; from 17.0 before 17.0.5 — fixed in 16.0.10, 17.0.5
How to fix
Upgrade to a fixed version: Sangoma FreePBX 16.0.10, 17.0.5. Check the vendor advisory for mitigations.
References
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