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CVE-2026-28209

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

Published: Mar 5, 2026Updated: Mar 6, 2026 Sources: CVE List NVDCWE-78
NVD MITRE
7.2CVSSHIGH
EPSS Score
0.9%
Top 45.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Workaround Only

Description

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.

CVSS Vector Breakdown

AV:NAC:LPR:HUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-78

Affected Products

freepbxsangoma
On-premWeb App
Communications / messaging-chat
security-reportingFreePBX
On-prem
Communications / voip-telephony
sangomacommercialCACommunicationsaka freepbx, certified asterisk, asterisk
freepbxoss-projectCommunicationsaka freepbx, security-reporting, endpoint

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Workaround Available

MITRE ATT&CK

1 technique
Execution
View detailed technique mapping

References

https://github.com/FreePBX/security-reporting/security/advisories/GHSA-f558-mp87-58vj
github.com

Timeline

Published
Mar 5, 2026
Last Updated
Mar 6, 2026

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