The Stylemix Cost Calculator Builder plugin suffers from a stored cross-site scripting vulnerability (CVE-2025-31414) due to improper input neutralization during web page generation. This flaw allows attackers with low privileges and requiring user interaction to inject malicious scripts that execute in the security context of other users. The vulnerability affects all versions up to 3.2.65. The CVSS 3.1 base score is 6.5, reflecting medium severity with impacts on confidentiality, integrity, and availability. No patch or official fix information is currently provided, and no exploits are known in the wild.

Successful exploitation of this vulnerability could allow an attacker to execute arbitrary scripts in the context of other users, potentially leading to theft of sensitive information, session hijacking, or other malicious actions affecting confidentiality, integrity, and availability of the affected system. However, exploitation requires user interaction and low privileges, which somewhat limits the risk. No known active exploits have been reported.

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 plugin, applying input validation or sanitization controls if possible, and monitoring for suspicious activity related to the plugin. Avoid granting unnecessary privileges to users who can interact with the plugin.