Cross-Site Scripting (XSS) is present on the ctl00_Content01_fieldValue parameters on the /psp/appNet/TemplateOrder/TemplatePreview.aspx endpoint in edu Business Solutions Print Shop Pro WebDesk version 18.34. User-supplied input is stored and later rendered in HTML pages without proper output encoding or sanitization. This allows attackers to persistently inject arbitrary JavaScript that executes in the context of other users' sessions