Automattic: Stored XSS in intensedebate.com via the Comments RSS

Stored XSS in intensedebate.com via the Comments RSS In our "comments.rss" file, the blog post's title reflects to the XML RSS file without any encoding. So I installed the IntenseDebate on my website https://wp.s2.cm, and created a blog post with alertdocument.domain payload on the title. Then, ...