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TI-2026-22544 Aliases CVE-2026-28209

FreePBX: Command Injection leading to Remote Code Execution in FreePBX ElevenLabs Text-to-Speech integration

Priority LOW 37CWE-78Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Attack requirements
Present
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
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. From versions 16.0.17.2 to before 16.0.20 and from version 17.0.2.4 to before 17.0.5, a command injection vulnerability exists in FreePBX when using the ElevenLabs Text-to-Speech (TTS) engine in the recordings module. This issue has been patched in versions 16.0.20 and 17.0.5.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01029 63rd percentileScored 2026-11-07
Fix Fixed security-reporting (FreePBX): 16.0.20, 17.0.5

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-reporting16.0.17.2 to before 16.0.20; 17.0.2.4 to before 17.0.516.0.20, 17.0.5Patch availableCNA
  • security-reporting VendorFreePBX Affected 16.0.17.2 to before 16.0.20; 17.0.2.4 to before 17.0.5 Fixed in 16.0.20, 17.0.5 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:sangoma:freepbx:*:*:*:*:*:*:*:*16.0.17.2 to before 16.0.20; 17.0.2.4 to before 17.0.5VulnerableSangoma
  • cpe:2.3:a:sangoma:freepbx:*:*:*:*:*:*:*:* Versions 16.0.17.2 to before 16.0.20; 17.0.2.4 to before 17.0.5 Vulnerable ·Sangoma

Remediation

  • Fix · CNA security-reporting (FreePBX) Fixed in 16.0.20, 17.0.5

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-28209

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