CVE-2026-108161

HIGH 7.5

FusionPBX through 5.6.5 OS Command Injection via Caller ID in Recording ZIP Download

CVSS Score

7.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-78
Vendor	fusionpbx
Product	fusionpbx
Published	Oct 10, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

fusionpbx / fusionpbx

0 ≤ 5.6.5

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/fusionpbx/fusionpbx/commit/074a69310100f95171c67db62643cc2aac4f4d37 github.com: https://github.com/fusionpbx/fusionpbx/blob/ac4cd29870e3af67506390800904e262fee7e0ec/app/call_recordings/resources/classes/call_recordings.php#L736-L776 github.com: https://github.com/fusionpbx/fusionpbx vulncheck.com: https://www.vulncheck.com/advisories/fusionpbx-through-5.6.5-os-command-injection-via-caller-id-in-recording-zip-download

Credits

Dilshod Gofurov