The vulnerability CVE-2026-28060 affects ThemeREX S.King versions up to 1.5.3. It 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 full system compromise. The CVSS 3.1 base score is 8.1, reflecting network attack vector, high complexity, no privileges required, no user interaction, and high impact on confidentiality, integrity, and availability.

Successful exploitation of this vulnerability can result in an attacker executing arbitrary PHP code on the affected server by including local files. This compromises the confidentiality, integrity, and availability of the system, potentially allowing full control over the affected environment. No known exploits have been reported in the wild so far.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or official fix information is provided, users should monitor ThemeREX advisories for updates. Until a fix is available, restricting access to the vulnerable application and limiting exposure to untrusted networks may reduce risk.