Arbitrary Command Execution Vulnerability in FreePBX by Sangoma
CVE-2026-75600

8.6HIGH

Key Information:

Vendor

Freepbx

Status
Security-reporting
Vendor
CVE Published:
28 September 2026

What is CVE-2026-75600?

FreePBX, an open-source IP PBX, has a vulnerability that allows authenticated users with access to the GraphQL API module to execute arbitrary shell commands. This is due to insufficient validation of user-provided parameters when constructing shell command executions. Although the generated OAuth access token is validated, the user-defined host parameter is not properly validated or escaped, posing a significant risk of unauthorized command execution as the FreePBX service user, typically 'asterisk'. This vulnerability has been addressed in version 17.0.9.

Affected Version(s)

security-reporting < 17.0.9

References

https://github.com/FreePBX/security-reporting/security/ad...
x_refsource_CONFIRM

CVSS V4

Score:
8.6
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.