this is an advice for the way to report problems in TikiWiki.
Please, try to send problems as near as possible to where developers can read them.
1) RssFeedDev, maybe PermissionDev, for sure TikiSecurity. You can contact UserPageohertel about this,
2) Depends... you can add it in PermissionDev, maybe WikiDev too.
3) I don't know...maybe LoginDev.