---
id: CVE-2026-73661
title: FreePBX is an open source IP PBX
summary: >-
  FreePBX is an open source IP PBX. Prior to 16.0.47 and 17.0.30, the FreePBX
  Framework module permits a crafted backup to restore the hidden AUTHTYPE
  setting with the value none through runRestore() in
  amp_conf/htdocs/admin/libraries/Buil…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N'
cwe:
  - CWE-15
vendor: sangoma
product: freepbx
affected:
  - 'freepbx >= 16.0, < 16.0.47'
  - 'freepbx >= 17.0, < 17.0.30'
patched:
  - freepbx 17.0.30
published: '2026-08-13'
updated: '2026-10-09'
sourceUpdated: '2026-10-09T19:44:06.023'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-73661'
references:
  - url: >-
      https://github.com/FreePBX/framework/commit/0591581654bc269df05cbb7093645d6934d4d861
    label: security-advisories@github.com
  - url: >-
      https://github.com/FreePBX/framework/commit/ea684be89abb393d1aff7f979d5fd751ff338dfd
    label: security-advisories@github.com
  - url: >-
      https://github.com/FreePBX/security-reporting/security/advisories/GHSA-f6hc-rqxg-ch86
    label: security-advisories@github.com
tags:
  - nvd
epss: 0.00308
epssPercentile: 0.23503
ingestedAt: '2026-09-18T20:51:25.613Z'
---

## Overview

FreePBX is an open source IP PBX. Prior to 16.0.47 and 17.0.30, the FreePBX Framework module permits a crafted backup to restore the hidden AUTHTYPE setting with the value none through runRestore() in amp_conf/htdocs/admin/libraries/Builtin/Restore.php. An authenticated user with sufficient backup-restore access or write access to backup files can thereby disable FreePBX authentication during restoration, bypassing the user-interface removal of AUTHTYPE=none. This issue is fixed in versions 16.0.47 and 17.0.30.

## Affected

- `freepbx >= 16.0, < 16.0.47`
- `freepbx >= 17.0, < 17.0.30`

## Remediation

Upgrade past the affected range:

- `freepbx 17.0.30`