WeGIA: Stored XSS in html/atendido/etapa_processo.php

WeGIA is a web manager for charitable institutions. In versions prior to 3.7.3, a Stored Cross-Site Scripting (XSS) vulnerability allows an authenticated user to inject malicious JavaScript into the "Etapas de um Processo" (html/atendido/etapa_processo.php) page, which is executed when user access the the page, enabling session hijacking and account takeover. This vulnerability is fixed in 3.7.3.