GHSA-G2G8-95QG-V35H HaxCMS has a stored Cross-Site Scripting (XSS) bypass in its saveNode endpoint

Summary HaxCMS is affected by a stored cross-site scripting XSS vulnerability in the /system/api/saveNode endpoint. An authenticated user with a permission to edit pages can bypass the HTML sanitizer by injecting an event handler attribute without whitespace before the attribute name. For example...