FYI I posted on my blog as soon as I was informed about the exploit. That feed gets pulled into the plugin’s admin page. Not sure how I could inform anyone earlier then I knew.
We recently found that all posts submitted using TDO Mini Forms are missing the author information. Whereas the posts used to display “By <author name>” and optionally the <author email>, the post authors have default to admin. New posts that were submitted using the TDO Mini Form have “tdomf_<number>” as the author instead of the author information.
That sounds like the posts were submitted from not logged in users, i.e. anonymous. The “tdomf_<number>” is a default author created to allow anonymous posting because every post needs to be associated with an a user. However, the info is not lost. The name and email is in the “Content Fields” (which should be called Author Email, Author Name and Author Website). So you can use the WordPress content fields API to display the name on your theme pretty easily.
Just for the record, you should be fairly safe to continue using the plugin if you don’t have uploads. And even if you do have uploads, your webserver configuration would have to allow jpgs to be executed as scripts to have an effect.