Cross-site scripting (XSS) vulnerability in Zucchetti Ad Hoc Revolution 4.1 and earlier allows remote unauthenticated attackers to inject arbitrary JavaScript via the pHtmlSource parameter of the /ahrw/jsp/gsfr_feditorHTML.jsp endpoint.
https://gist.github.com/alex-xor/8d0f9f456e6840a955889305ea789ef8