CVE-2026-28209

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

State: Published
Severity: 7.5 High
Published: Mar 5, 2026
Updated: Mar 7, 2026
Reserved: Feb 25, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	7.5 High	CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N	GitHub_M

Weaknesses

CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Affected Products

Product	Versions
security-reportingFreePBX	>= 16.0.17.2, < 16.0.20Affected >= 17.0.2.4, < 17.0.5Affected

References

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

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