CVE-2026-108161

high

Description

FusionPBX through 5.6.5 contains an OS command injection vulnerability in call_recordings::download() that allows unauthenticated attackers to execute commands by placing calls with malicious caller ID values. When the record_name filename template is enabled, attackers can embed shell metacharacters like $(...) in the Caller-ID name or number, executing commands as the web server user once a privileged user downloads multiple recordings as a ZIP.

References

https://www.vulncheck.com/advisories/fusionpbx-through-5.6.5-os-command-injection-via-caller-id-in-recording-zip-download

https://github.com/fusionpbx/fusionpbx/commit/074a69310100f95171c67db62643cc2aac4f4d37

https://github.com/fusionpbx/fusionpbx/blob/ac4cd29870e3af67506390800904e262fee7e0ec/app/call_recordings/resources/classes/call_recordings.php#L736-L776

https://github.com/fusionpbx/fusionpbx

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-96316

Details

Source: Mitre, NVD

Published: 2026-10-10

Updated: 2026-10-10

Risk Information

CVSS v2

Base Score: 7.6

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Severity: High

CVSS v4

Base Score: 7.7

Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Severity: High