Cross-site scripting (XSS) vulnerability in Site Calendar 'mycaljp' plugin 2.0.0 through 2.0.6, as used in the Japanese extended package of Geeklog 1.5.0 through 1.5.2 and when distributed 20090629 or earlier, allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
http://www.geeklog.jp/article.php/20090820020302431
http://secunia.com/advisories/36413
http://secunia.com/advisories/36404