CVE-2026-73664
FreePBX: Authenticated Arbitrary SSH Key Injection via Backup Module
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-269 CWE-284 CWE-732 |
| Vendor | freepbx |
| Product | backup |
| Published | Aug 13, 2026 |
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Affected Versions
FreePBX / backup
>= 17.0.5.34, < 17.0.11