The vulnerability CVE-2025-58784 in arisoft ARI Fancy Lightbox (<= 1.4.0) is a stored cross-site scripting (XSS) issue caused by improper input neutralization during web page generation. This allows attackers with at least low privileges and requiring user interaction to inject malicious scripts that can affect confidentiality, integrity, and availability to a limited extent. The CVSS vector indicates network attack vector, low attack complexity, privileges required, user interaction required, and scope change with partial impact on confidentiality, integrity, and availability.

Successful exploitation could allow an attacker to execute arbitrary scripts in the context of the affected web application, potentially leading to information disclosure, session hijacking, or other user-impacting actions. The impact is rated as medium severity with partial confidentiality, integrity, and availability impacts. No known active exploitation has 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 privileges of users who can submit input to the plugin and apply web application firewall (WAF) rules to detect and block XSS payloads related to this vulnerability. Monitor vendor channels for updates regarding patches or official mitigations.