CVE-2026-73661

HIGH

CVE: CVE-2026-73661 - FreePBX is an open source IP PBXSign in to save

CVSS

8.6

CVSS v4.0

EPSS

N/A

Exploit Prediction Score

Published

August 13, 2026

Exploitability

No EPSS data available

Description

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.

Weaknesses

CWE-15

Affected Packages

No package data available.

Aliases

CVE-2026-73661

Related references

Publisher and database URLs for this record (shown for attribution; reading stays in Bugflare).

https://github.com/FreePBX/framework/commit/0591581654bc269df05cbb7093645d6934d4d861
https://github.com/FreePBX/framework/commit/ea684be89abb393d1aff7f979d5fd751ff338dfd
https://github.com/FreePBX/security-reporting/security/advisories/GHSA-f6hc-rqxg-ch86