CVE-2026-73662: CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in FreePBX music
FreePBX Music on Hold module versions from 17.0.1 up to but not including 17.0.7 contain a vulnerability that allows an authenticated administrator to execute arbitrary OS commands as the asterisk service user. This occurs because dangerous command-line options for audio players like /usr/bin/mpg123 are not properly filtered, enabling command injection. The issue is fixed in version 17.0.7.
AI Analysis
Technical Summary
The FreePBX Music on Hold module, in versions 17.0.1 through 17.0.6, improperly neutralizes special elements in command-line options passed to audio players such as /usr/bin/mpg123. The function applicationUsesDisallowedPlayerOption() fails to reject dangerous arguments that can write files, open control channels, or create Asterisk call files. This flaw allows an authenticated administrator to execute arbitrary commands with the privileges of the asterisk service user. The vulnerability is addressed in FreePBX version 17.0.7.
Potential Impact
An authenticated administrator can exploit this vulnerability to execute arbitrary OS commands as the asterisk service user, potentially leading to unauthorized file writes, control channel manipulation, or creation of Asterisk call files. This could compromise the integrity and availability of the PBX system.
Mitigation Recommendations
Upgrade FreePBX Music on Hold module to version 17.0.7 or later, where this vulnerability is fixed. No other mitigation guidance is provided. Patch status is confirmed fixed in 17.0.7.
CVE-2026-73662: CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in FreePBX music
Description
FreePBX Music on Hold module versions from 17.0.1 up to but not including 17.0.7 contain a vulnerability that allows an authenticated administrator to execute arbitrary OS commands as the asterisk service user. This occurs because dangerous command-line options for audio players like /usr/bin/mpg123 are not properly filtered, enabling command injection. The issue is fixed in version 17.0.7.
CVSS v4.0
Score 7.6high
Affected software
pkg:github/freepbx/musicRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The FreePBX Music on Hold module, in versions 17.0.1 through 17.0.6, improperly neutralizes special elements in command-line options passed to audio players such as /usr/bin/mpg123. The function applicationUsesDisallowedPlayerOption() fails to reject dangerous arguments that can write files, open control channels, or create Asterisk call files. This flaw allows an authenticated administrator to execute arbitrary commands with the privileges of the asterisk service user. The vulnerability is addressed in FreePBX version 17.0.7.
Potential Impact
An authenticated administrator can exploit this vulnerability to execute arbitrary OS commands as the asterisk service user, potentially leading to unauthorized file writes, control channel manipulation, or creation of Asterisk call files. This could compromise the integrity and availability of the PBX system.
Mitigation Recommendations
Upgrade FreePBX Music on Hold module to version 17.0.7 or later, where this vulnerability is fixed. No other mitigation guidance is provided. Patch status is confirmed fixed in 17.0.7.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-08-13T14:04:09.606Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a7e3a17bf8831d539d70455
Added to database: 08/13/2026, 21:41:43 UTC
Last enriched: 08/13/2026, 21:56:13 UTC
Last updated: 08/13/2026, 22:02:25 UTC
Views: 5
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