CVE-2026-73660

FreePBX: Authenticated TTS AGI Command Injection Through TTS Name

HIGH
7.5
CVSS Score
Published: August 13, 2026 at 09:23 PM UTC
Updated: October 24, 2026 at 03:10 PM UTC
1 product affected across 1 vendorTts

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Severity
HIGH7.5
Exploit prediction
EPSS 0.8%
SSVC
No known exploit

Description

FreePBX is an open source IP PBX. Prior to 16.0.6 and 17.0.5.4, the FreePBX Text-To-Speech module allows an authenticated administrator to save a TTS destination name that is HTML-encoded for storage, decoded during dialplan generation, passed as an AGI argument, and used to build filenames inside agi-bin/propolys-tts.agi. The TTS destination name reaches a raw shell-command execution path, allowing arbitrary operating-system command execution as the asterisk service user. This issue is fixed in versions 16.0.6 and 17.0.5.4.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 16.0.6>= 17.0.1, < 17.0.5.4
Affected range stops below 16.0.6, so it looks safe — our inference, not a vendor statement
Affected range stops below 17.0.5.4, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHGitHub_M
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-78

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