This is not a bug. Yust a notification.
Is the Linux.Plupii virus a treath for pixelpost?
I have read about it on a dutch site
http://tweakers.net/nieuws/39772
People who are using PostNuke, Drupal, Xoops, WordPress or TikiWiki have to update there software. The virus use the XML-RPC-implementationss.
More information about the virus:
http://www.sarc.com/avcenter/venc/da...ux.plupii.html