Thread:Project:Support desk/Receive 404 (403) error when adding more than 3 links to URLs on a page.

Hello. Our problem is exactly like this one: http://www.mediawiki.org/wiki/Thread:Project:Support_desk/Receive_404_error_when_adding_more_than_3_links_to_URLs_on_a_page.

I did not reply to the thread because it's almost a year old and marked as resolved.

The issue is, when we add more than 3 links per page, mod_security creates a 404 error (that is actually a 403 error). Given that this is a wiki, we have a news page that has more than 3 external links, as well as the front page having more than 3 external links. We disabled mod_security for a while, but that turned out to be a bad idea, so we need another solution.

I have heard of adding exceptions to mod_security, but other than the question linked above, I cannot determine what exactly we should be exempting. I think adding an except that allows certain user groups to post more than 3 links would work best, but I'm not sure how to go about that since mod_security isn't a wiki thing...