Thread:Project:Support desk/Search results page redirects to unsafe site/reply (2)

Thanks for your reply, I had thought something along that line. The URL is http://ccmdb.kuality.ca/index.php?title=Special:UserLogout&returnto=Main_Page. Even without login, running a blank search does the trick. We had already looked in the recent changes and there was nothing enlighenting there. For one of the wikis, common.js and common.css seemed to be corrupted, the pages were not accessible at all via wiki. Not for the other wikis, though. Any ideas how to proceed troubleshooting?