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TI-2026-51745 Aliases CVE-2026-73661

FreePBX: Authenticated Framework AUTHTYPE Can Be Restored From a Crafted Backup

Priority LOW 37CWE-15Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

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/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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00308 23rd percentileScored 2026-11-07
Fix Fixed framework (FreePBX): 16.0.47, 17.0.30

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
FreePBXframeworkbefore 16.0.47; 17.0.1 to before 17.0.3016.0.47, 17.0.30Patch availableCNA
  • framework VendorFreePBX Affected before 16.0.47; 17.0.1 to before 17.0.30 Fixed in 16.0.47, 17.0.30 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:sangoma:freepbx:*:*:*:*:*:*:*:*16.0 to before 16.0.47; 17.0 to before 17.0.30VulnerableSangoma
  • cpe:2.3:a:sangoma:freepbx:*:*:*:*:*:*:*:* Versions 16.0 to before 16.0.47; 17.0 to before 17.0.30 Vulnerable ·Sangoma

Remediation

  • Fix · CNA framework (FreePBX) Fixed in 16.0.47, 17.0.30

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-73661
  2. 2026-10-09 CVSS score added · NVD

References

Patch 2

Advisory 1

  • TI-2025-35702 FreePBX Affected by Authentication Bypass Leading to SQL Injection and RCE KEVCVSS 4.0CRITICAL 10.0
  • TI-2025-39763 FreePBX Administration GUI is Vulnerable to Authenticated Command Injection KEVCVSS 4.0HIGH 8.6
  • TI-2024-38391 FreePBX 16 Authenticated Remote Code Execution via API Module CVSS 4.0HIGH 8.7
  • TI-2014-06023 htdocs_ari/includes/login.php in the ARI Framework module/Asterisk Recording Interface… CVSS 2.0HIGH 10.0
  • TI-2025-36981 FreePBX core module vulnerable to reflected cross-site scripting via Asterisk HTTP Status page CVSS 4.0HIGH 8.5
  • TI-2025-38110 FreePBX Endpoint Manager vulnerable to authenticated arbitrary file upload via fwbrand parameter CVSS 4.0HIGH 8.6
See all 55 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences