Cross-site scripting (XSS) vulnerability in pmlite.php in XOOPS 2.3.1 and 2.3.2a allows remote attackers to inject arbitrary web script or HTML via a STYLE attribute in a URL BBcode tag in a private message.
http://www.xoops.org/modules/news/article.php?storyid=4563
http://www.xoops.org/modules/news/article.php?storyid=4540