ZoneMinder 1.23.3 on Fedora 10 sets the ownership of /etc/zm.conf to the apache user account, and sets the permissions to 0600, which makes it easier for remote attackers to modify this file by accessing it through a (1) PHP or (2) CGI script.
https://www.redhat.com/archives/fedora-package-announce/2009-January/msg00204.html