CVE-2026-79419 – A reflected cross-site scripting (XSS) vulnerability exists in EMX Tecnologia Gestao X Bus

A reflected cross-site scripting (XSS) vulnerability exists in EMX Tecnologia Gestao X Business Suite 8.4 and earlier. The vulnerability is caused by insufficient validation and sanitization of the mensagem parameter in the /Configuracao/Imagens.aspx endpoint, allowing an unauthenticated attacker to inject arbitrary JavaScript code that is reflected and executed in the context of a victim’s browser.