FreePBX up to 16.0.39/17.0.6 Superfecta save_options input validation

Summaryinfo

A vulnerability classified as critical was found in FreePBX up to 16.0.39/17.0.6. Affected is the function save_options of the component Superfecta Module. Executing a manipulation can lead to input validation. The identification of this vulnerability is CVE-2026-54710. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in FreePBX up to 16.0.39/17.0.6 and classified as critical. This vulnerability affects the function save_options of the component Superfecta Module. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

FreePBX is an open source IP PBX. Prior to versions 16.0.40 and 17.0.7, a critical remote code execution (RCE) vulnerability exists in the superfecta module due to unsafe inclusion of arbitrary PHP files, allowing authenticated attackers to execute arbitrary PHP code on the server with the privileges of the web server user. Authentication with a known username is required. The vulnerability is rooted in the options and save_options cases in the Superfecta module's AJAX handler. The code dynamically includes PHP files from the sources/ directory based on user-supplied input. This allows an attacker to execute arbitrary code when combined with arbitrary directory creation (e.g., via the backup module) and file uploads that reveal full paths (e.g., via the soundlang module). This issue has been patched in versions 16.0.40 and 17.0.7.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-54710 since 06/16/2026. The exploitation appears to be easy. The attack can be initiated remotely. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

Upgrading to version 16.0.40 or 17.0.7 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

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
• 16.0.10
• 16.0.11
• 16.0.12
• 16.0.13
• 16.0.14
• 16.0.15
• 16.0.16
• 16.0.17
• 16.0.18
• 16.0.19
• 16.0.20
• 16.0.21
• 16.0.22
• 16.0.23
• 16.0.24
• 16.0.25
• 16.0.26
• 16.0.27
• 16.0.28
• 16.0.29
• 16.0.30
• 16.0.31
• 16.0.32
• 16.0.33
• 16.0.34
• 16.0.35
• 16.0.36
• 16.0.37
• 16.0.38
• 16.0.39
• 17.0.0
• 17.0.1
• 17.0.2
• 17.0.3
• 17.0.4
• 17.0.5
• 17.0.6

License

• open-source

CPE 2.3info

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CPE 2.2info

• 🔒
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