The vulnerability CVE-2025-39429 concerns improper control of the filename parameter in include/require statements within the Széchenyi 2020 Logo PHP application. This improper control enables PHP Local File Inclusion, allowing an attacker to include local files on the server. The affected product versions are up to 1.1. The CVSS v3.1 base score is 7.5, indicating high severity with network attack vector, high impact on confidentiality, integrity, and availability, but requiring high attack complexity and user interaction.

Successful exploitation of this vulnerability could allow an attacker to include arbitrary local files on the server, potentially leading to disclosure of sensitive information, code execution, or denial of service. The CVSS score of 7.5 reflects a high impact on confidentiality, integrity, and availability. However, exploitation requires user interaction and has high attack complexity.

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 the vulnerable application and validate or sanitize all inputs used in include/require statements to mitigate risk. Monitor vendor channels for updates regarding patches or official mitigations.