This vulnerability arises from insufficient validation or control over filenames used in PHP include or require statements within the Just Post Preview Widget. The flaw allows local file inclusion, which can lead to disclosure of sensitive files, code execution, or denial of service. The CVSS 3.1 base score is 7.5, reflecting network attack vector, high attack complexity, low privileges required, no user interaction, and high impact on confidentiality, integrity, and availability. The affected product versions are up to 1.1.1. No patch or official remediation guidance is currently available.

Successful exploitation could allow an attacker to include local files on the server, potentially exposing sensitive information, executing arbitrary code, or disrupting service. The vulnerability impacts confidentiality, integrity, and availability at a high level. 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 the affected widget, applying strict input validation or filtering on filenames if possible, and monitoring for suspicious activity related to file inclusion attempts.