The vulnerability CVE-2025-59558 affects ThemeMove Billey versions before 2.1.6 and is caused by improper validation of filenames used in PHP include or require statements. This allows an attacker to perform Local File Inclusion, which can lead to disclosure of sensitive files, code execution, or denial of service. The CVSS v3.1 base score is 8.1, indicating high severity, with network attack vector, high attack complexity, no privileges required, no user interaction, and impacts to confidentiality, integrity, and availability. No patch or vendor advisory is currently available to confirm remediation status.

Successful exploitation of this vulnerability could allow an unauthenticated remote attacker to include local files on the server, potentially leading to disclosure of sensitive information, remote code execution, or denial of service. The impact affects confidentiality, integrity, and availability of the affected system. There are no known exploits in the wild at this time.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should consider restricting access to vulnerable installations and applying any available workarounds recommended by the vendor. Avoid exposing the affected application to untrusted networks if possible.