On 3CX 15.5.6354.2 devices, the parameter "file" in the request "/api/RecordingList/download?file=" allows full access to files on the server via path traversal.
https://medium.com/stolabs/path-traversal-in-3cx-7421a8ffdb7a
http://www.rootlabs.com.br/path-traversal-in-3cx/
Source: Mitre, NVD
Published: 2018-03-04
Updated: 2026-06-17
Base Score: 4
Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:N/A:N
Severity: Medium
Base Score: 6.5
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS: 0.00405