A vulnerability has been reported in shiromuku(fs6)DIARY, which can be exploited by malicious people to conduct cross-site scripting attacks.

Input passed via unspecified parameters is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.

The vulnerability is reported in version 2.40. Other versions may also be affected.

Solution
Update to the fixed version. Please see the vendor's advisory for details.

Provided and/or discovered by
The vendor credits JPCERT / CC.

Changelog
Further details available to Secunia VIM customers

Original Advisory
shiromuku(fs6)DIARY:
http://www.t-okada.com/cgi-bin/s_news/s_news.cgi?action=show_detail&txtnumber=log&mynum=345

JVN:
http://jvn.jp/jp/JVN31110006/index.html
http://jvndb.jvn.jp/en/contents/2009/JVNDB-2009-000048.html

Deep Links
Links available to Secunia VIM customers