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TI-2026-39497 Aliases CVE-2026-54674

Authenticated Command Injection in FreePBX UCP Interface

Priority MEDIUM 41CWE-78Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-78.

Summary

FreePBX is an open source IP PBX. Prior to versions 16.0.39 and 17.0.7, users authenticated via User Control Panel (UCP) are able to execute arbitrary commands on the PBX as the webserver user (typically asterisk) using specially crafted HTTP strings. Authenticated access to UCP is required. Note that this is often more common for less-privileged users to have UCP access vs. the Administrator Control Panel (ACP) access (which is usually FreePBX higher-level administrator accounts only). Insufficient sanitization of certain URL parameters utilized by UCP did not fully account for malicious strings in these fields. This could result in binaries being executed on the host server by carefully chaining commands. This issue has been patched in versions 16.0.39 and 17.0.7.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00879 59th percentileScored 2026-11-07
Fix Fixed security-reporting (FreePBX): 16.0.39, 17.0.7

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

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

Affected products

VendorProductAffected versionsFixed inStatusSource
FreePBXsecurity-reportingbefore 16.0.39; before 17.0.716.0.39, 17.0.7Patch availableCNA
  • security-reporting VendorFreePBX Affected before 16.0.39; before 17.0.7 Fixed in 16.0.39, 17.0.7 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:sangoma:freepbx:*:*:*:*:*:*:*:*16.0 to before 16.0.39; 17.0 to before 17.0.7VulnerableSangoma
  • cpe:2.3:a:sangoma:freepbx:*:*:*:*:*:*:*:* Versions 16.0 to before 16.0.39; 17.0 to before 17.0.7 Vulnerable ·Sangoma

Remediation

  • Fix · CNA security-reporting (FreePBX) Fixed in 16.0.39, 17.0.7

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-54674
  2. 2026-10-16 CVSS score added · NVD
  3. 2026-10-18 EPSS moved to the 50th–90th percentile

References

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