High severity · published Mar 5, 2026
CVE-2026-28287
FreePBX: Authenticated Remote Code Execution via Recordings Module AJAX Endpoints
8.8
CVSS
8.5%
EPSS
No
On KEV
Description
FreePBX is an open source IP PBX. From versions 16.0.17.2 to before 16.0.20 and from version 17.0.2.4 to before 17.0.5, multiple command injection vulnerabilities exist in the recordings module. This issue has been patched in versions 16.0.20 and 17.0.5.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)8.5% · higher than 95% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SE
security-reporting · FreePBX
>= 16.0.17.2, < 16.0.20; >= 17.0.2.4, < 17.0.5 · source: vendor
FR
Freepbx · Sangoma
16.0.17.2 before 16.0.20; 17.0.2.4 before 17.0.5 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-28287
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-28287
Mitigation
https://github.com/FreePBX/security-reporting/security/advisories/GHSA-9vv6-h8v6-rp4q
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