Forgive any existing articles that might be an oversight here.
I recently installed limesurvey via a cpanel tool on a site that is also running wordpress. I can get more technical details but that's about all I can comprehend on my own at this point.
If I leave the inline html editor enabled, any time I try to submit a page (for instance, the main survey text fields settings for description, welcome message, etc.), clicking submit results in a redirect to my site's top directory, and the page is not submitted correctly.
I turned off the inline html editor, and everything is fine. It doesn't seem to be the editor itself, though, because if I add an html element in one of the plain text fields (just a "<br/>" or the like), I run into the same error.
So my guess is this is some obscure PHP permissions issue or other error-- hopefully this is an easy to recognize and common issue, but I have no idea where to start.