WordPress has released version 2.9.2 with a simple update for those who has open their blog registration for everyone and having untrusted users. If your blog is having untrusted logged in users then they can play with he “Trash” posts written by other authors as well. FYI, Trash feature came in WordPress 2.9 to keep the deleted posts for time being and then you can permanently delete them from your blog. But as reported by some WordPress developers, every logged in user is having unwanted access to trash posts even written by other authors.
That’s why WordPress came up with version 2.9.2. So if you are having a revenue sharing blog or multi author blog then you should upgrade to 2.9.2 without fail.
Keep in touch in case you are facing any problem upgrading your wordpress setup.