The vulnerability CVE-2026-28081 in ThemeREX Windsor arises from improper control over filenames used in PHP include or require statements. This flaw enables PHP Local File Inclusion, allowing an attacker to include and execute local files on the server. The affected versions are from initial releases through version 2.5.0. The CVSS v3.1 base score is 8.1, indicating high severity with network attack vector, high impact on confidentiality, integrity, and availability, and requiring no privileges or user interaction but with high attack complexity. No patch or official fix information is available at this time.

Successful exploitation of this vulnerability could lead to local file inclusion on the affected server, potentially allowing attackers to read sensitive files, execute arbitrary code, or cause denial of service. The CVSS score of 8.1 reflects a high impact on confidentiality, integrity, and availability. There are no known exploits in the wild currently.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should consider restricting access to vulnerable installations and applying any available workarounds from the vendor. Monitor official ThemeREX channels for updates regarding patches or mitigations.