XMB Forum 1.9.5 allows users to embed malicious flash movies in their posts, which leads to XSS.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/45376/XMB-1.9.5-Final.txt
Source: https://packetstormsecurity.com/files/45376/XMB-1.9.5-Final.txt.html