When I log in to my site, I am forwarded to a page with the string "468505ab9718d8c2205ea35d94f04668". I have googled this string and it seems it is the md5 encryption of "313373". Neither of these strings have any meaning to me.
If I go to my site I am logged in, but can't access any admin pages or edit posts.
I have renamed my plugins folder to "plugins.hold" and tried to log in, but this issue still occurs.
If you need any more information, just ask. Any help would be greatly appreciated.