Description
FreePBX is an open source IP PBX. From 17.0.5.34 until 17.0.11, the publicKeySave AJAX endpoint in Backup.class.php accepts an authenticated administrator's SSH public key and appends it to /home/asterisk/.ssh/authorized_keys for the asterisk system user without reliably enforcing backup-only command and source restrictions. The key grants persistent shell access that can execute arbitrary commands, access FreePBX and call data, modify system files, and disrupt services. This issue is fixed in version 17.0.11.
Published: 2026-08-13
Score: 8.6 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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History

Thu, 13 Aug 2026 22:00:00 +0000

Type Values Removed Values Added
Description FreePBX is an open source IP PBX. From 17.0.5.34 until 17.0.11, the publicKeySave AJAX endpoint in Backup.class.php accepts an authenticated administrator's SSH public key and appends it to /home/asterisk/.ssh/authorized_keys for the asterisk system user without reliably enforcing backup-only command and source restrictions. The key grants persistent shell access that can execute arbitrary commands, access FreePBX and call data, modify system files, and disrupt services. This issue is fixed in version 17.0.11.
Title FreePBX: Authenticated Arbitrary SSH Key Injection via Backup Module
Weaknesses CWE-269
CWE-284
CWE-732
References
Metrics cvssV4_0

{'score': 8.6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-08-13T21:30:37.573Z

Reserved: 2026-08-13T14:04:09.606Z

Link: CVE-2026-73664

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-13T22:17:28.087

Modified: 2026-08-13T22:17:28.087

Link: CVE-2026-73664

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses
  • CWE-269

    Improper Privilege Management

  • CWE-284

    Improper Access Control

  • CWE-732

    Incorrect Permission Assignment for Critical Resource