CVE-2019-15059
In Liberty lisPBX 2.0-4, configuration backup files can be retrieved remotely from /backup/lispbx-CONF-YYYY-MM-DD.tar or /backup/lispbx-CDR-YYYY-MM-DD.tar without authentication or authorization. These configuration files have all PBX information including extension numbers, contacts, and passwords.
Source: CVE-2019-15059