CVE-2026-54710Network attack vector

Authenticated PHP execution via unsafe source inclusion

Published Sep 28, 2026 · Updated Sep 28, 2026

Code injection in FreePBX Superfecta before 16.0.40 or 17.0.7 allows remote authenticated users to execute PHP on the server. The AJAX handler's options and save_options cases include files from the sources directory using user-controlled input without restricting the selected path. Exploitation requires a known username and a way to create a directory and upload a PHP file; the code runs with the web server user's privileges.

CVSS severity8.6
High
EPSS probability0.51%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in FreePBX Superfecta before 16.0.40 or 17.0.7 allows remote authenticated users to execute PHP on the server. The AJAX handler's options and save_options cases include files from the sources directory using user-controlled input without restricting the selected path. Exploitation requires a known username and a way to create a directory and upload a PHP file; the code runs with the web server user's privileges.

The record

CVE
CVE-2026-54710
Published
Sep 28, 2026
Updated
Sep 28, 2026
Vendor
FreePBX
Product
Security Reporting
Classifications
CWE-20, CWE-94, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 28, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 16.0.40
  2. Affected versionversion=< 17.0.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

FreePBX · Security Reportingversion=< 16.0.40; version=< 17.0.7

Published CVSS scores

6.2FreePBXCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
8.6FreePBXCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
CWE-94Improper Control of Generation of Code ('Code Injection')
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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