This vulnerability in Johnson Controls Metasys 14 and 15 products arises from improper input neutralization during web page generation, leading to cross-site scripting (XSS). Affected versions include Metasys 14 prior to 14.1.5 and Metasys 15 prior to 15.0.1. The issue allows attackers with low privileges and requiring user interaction to potentially execute malicious scripts in the context of the affected web application. The CVSS 4.0 vector indicates network attack vector, low attack complexity, no attack prerequisites, partial user interaction, and high impact on confidentiality, integrity, and availability. No vendor advisory or patch information is currently available to confirm remediation status.

Successful exploitation of this vulnerability could allow an attacker to execute arbitrary scripts in the context of the affected web application, potentially leading to data theft, session hijacking, or other malicious actions impacting confidentiality, integrity, and availability. The attack requires user interaction and low privileges, limiting the ease of exploitation. There are no known active exploits in the wild.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should exercise caution with untrusted input and consider implementing web application firewall rules or input validation as temporary mitigations.