Hi. There is a brown-paper-bag bug in mathopd-1.5. So I have zapped that release and put up mathopd-1.5p1 instead. If you run 1.5 please upgrade ASAP. If you cannot upgrade you should at least define a global Error404File (and an Error403File or Error401File if you use Access or Realm.)
Thanks to Tahd Dell for pointing this out. Problem description: normally requests for things like /../../../../etc/passwd should be denied of course. Unfortunately the introduction of CGI scripts for ErrorFiles ignored this check. :( Sorry about this. Now I will go and stand in a corner for a month or so.
