This vulnerability in Select-Themes Struktur arises from improper validation or control of filenames used in PHP include or require statements, enabling local file inclusion (LFI). The flaw affects Struktur versions up to 2.5.1. Exploitation could allow an attacker to execute arbitrary code or disclose sensitive information by including local files. 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 on confidentiality, integrity, and availability.

Successful exploitation of this vulnerability can lead to full compromise of the affected system's confidentiality, integrity, and availability. An attacker could execute arbitrary code or access sensitive files on the server hosting Struktur. 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 endpoints and applying any recommended temporary mitigations from the vendor. Monitor vendor channels for updates regarding patches or official fixes.