This vulnerability in Mikado-Themes Deston arises from improper validation or control of filenames used in PHP include or require statements, enabling PHP Local File Inclusion. This can allow an attacker to include and execute arbitrary local files on the server, potentially leading to remote code execution or data disclosure. The affected product versions include Deston up to and including 1.0. The CVSS 3.1 base score is 8.1 with vector AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H, indicating network attack vector, high attack complexity, no privileges required, no user interaction, unchanged scope, and high impact on confidentiality, integrity, and availability.

Successful exploitation can result in full compromise of the affected system's confidentiality, integrity, and availability due to local file inclusion via PHP include/require statements. This may allow attackers to execute arbitrary code or access sensitive files on the server running Mikado-Themes Deston versions 1.0 and earlier.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are currently available. Until a patch is released, users should consider disabling or restricting vulnerable functionality and applying strict input validation on filenames used in include/require statements to mitigate risk.