FreePBX up to 16.0.9/17.0.4 Sound Language Upload/Conversion path traversal

Summaryinfo

A vulnerability described as critical has been identified in FreePBX up to 16.0.9/17.0.4. This affects an unknown function of the component Sound Language Upload/Conversion. Such manipulation leads to path traversal. This vulnerability is uniquely identified as CVE-2026-54675. The attack can be launched remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, has been found in FreePBX up to 16.0.9/17.0.4. Affected by this issue is an unknown code block of the component Sound Language Upload/Conversion. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-54675 since 06/16/2026. The exploitation is known to be easy. The attack may be launched remotely. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1006 by the MITRE ATT&CK project.

Upgrading to version 16.0.10 or 17.0.5 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

• FreePBX

Version

• 16.0.0
• 16.0.1
• 16.0.2
• 16.0.3
• 16.0.4
• 16.0.5
• 16.0.6
• 16.0.7
• 16.0.8
• 16.0.9
• 17.0.0
• 17.0.1
• 17.0.2
• 17.0.3
• 17.0.4

License

• open-source

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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