CVE-2017-15359: 3cx

Medium severity, CVSS 6.5. EPSS: 6.2% chance of exploitation in the next 30 days.

In the 3CX Phone System 15.5.3554.1, the Management Console typically listens to port 5001 and is prone to a directory traversal attack: "/api/RecordingList/DownloadRecord?file=" and "/api/SupportInfo?file=" are the vulnerable parameters. An attacker must be authenticated to exploit this issue to access sensitive information to aid in subsequent attacks.

Affected products

• 3cx 3cx: version 15.5.3554.1 only

Published 2017-10-18. Last modified 2026-06-17.