This vulnerability arises from insufficient validation or sanitization of filenames used in PHP include or require statements within the ThemeREX Rhythmo theme. An attacker could exploit this to perform Local File Inclusion, which may lead to arbitrary code execution or disclosure of sensitive 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. The affected versions are from initial releases through 1.3.4. No patch or official vendor advisory is currently available.

Successful exploitation of this vulnerability could allow an unauthenticated remote attacker to include local files on the server, potentially leading to arbitrary code execution, data disclosure, or 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 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 disabling or removing the affected theme or restricting access to vulnerable endpoints if possible. Monitor official ThemeREX communications for updates and apply patches promptly once released.