The vulnerability CVE-2025-22308 in Takashi Kitajima Smart Custom Fields plugin is a stored cross-site scripting issue caused by improper input neutralization during web page generation. This flaw allows attackers with at least low privileges and requiring user interaction to inject malicious scripts that can execute in the context of other users, potentially leading to limited confidentiality, integrity, and availability impacts. The affected versions include all versions up to 5.0.0. The CVSS vector indicates network attack vector, low attack complexity, privileges required, user interaction required, and scope change with low impacts on confidentiality, integrity, and availability.

Successful exploitation of this stored XSS vulnerability could allow an attacker to execute arbitrary scripts in the browsers of users who view the affected content. This may lead to limited disclosure of information, modification of data, or disruption of service within the scope of the affected application. The CVSS score of 6.5 reflects a medium severity impact with potential confidentiality, integrity, and availability impacts rated as low.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or official fix information is provided, users of the affected Smart Custom Fields plugin should monitor the vendor's communications for updates. Until a fix is available, consider restricting privileges to trusted users and limiting exposure of affected pages to reduce risk.