This vulnerability (CVE-2025-31549) in Agency Dominion Inc. Fusion arises from improper neutralization of input during web page generation, leading to a DOM-based Cross-site Scripting (XSS) issue. It affects Fusion versions up to 1.6.4. The CVSS 3.1 base score is 6.5, reflecting network attack vector, low attack complexity, low privileges required, user interaction needed, and impacts on confidentiality, integrity, and availability. No vendor advisory or patch information is provided, and the product is not a cloud service.

Successful exploitation could allow an attacker with low privileges and requiring user interaction to execute arbitrary scripts in the victim's browser context, potentially leading to partial confidentiality, integrity, and availability impacts within the affected application environment. There are no known active 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 apply standard mitigations for DOM-based XSS such as input validation and output encoding where possible within their deployment. Monitor vendor communications for updates on patches or official mitigations.