able to edit other users submissions

hi there, i use gf for users to be able to submit articles to my blog and work only from frontend with subscriber rights. works fine so far.

now i wanted to give them a option to also edit their submitted articles via frontend and tried this plugin.

don´t know if this is only on my installation, but with subscriber rights, articles do not show up in edit form, only if i give users more than subscriber rights (what makes no sense on my installation because i don´t want them to have access to the backend,..)

but the more critical issue i found is that users not only are able to edit their own articles, they are able to edit all articles. (i used the “edit this article” link in the single template file).

anyone else? is this only on my site, misconfigured gf, or is this a bug?

http://wordpress.org/plugins/gravity-forms-update-post/