reflected xss in the pageId request parameter in 500page.jsp

A scanner picked up that the pageId parameter in 500page.jsp is a potentially reflected xss bug. This can be exploited through a url like the following: https://example.com/pages/viewtrash.vm;editpage?pageId=%22%3E%3Cscript%3Ealert1%3C/script%3E code /images/icons/emoticons/warning.png" You can...