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7.7

FusionPBX lets attackers run commands via caller ID

CVE-2026-108161 · published 5 days ago
Summary

FusionPBX versions up to 5.6.5 let anyone send a call with a specially crafted caller ID that includes command code. When a privileged user later downloads a zip of call recordings, the malicious code runs on the server with the web‑server’s rights. Apply the vendor’s update or disable the filename template feature to stop this behavior.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
fusionpbx fusionpbx <= 5.6.5
Original advisory text
FusionPBX through 5.6.5 OS Command Injection via Caller ID in Recording ZIP Download
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
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker full control
Severity
7.7 High
Exploitation
1% chance of attack within 30 days
Type
CWE-78OS Command Injection
Timeline
Published10 Oct 2026
Updated15 Oct 2026
First seen10 Oct 2026
Sources
CVE-2026-108161 · NVD
CVE-2026-108161 · MITRE
CVE-2026-108161 · OSV
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