Direct static code injection vulnerability in the flood protection feature in inc/shows.inc.php in CuteNews 1.4.0 and earlier allows remote attackers to execute arbitrary PHP code via the HTTP_CLIENT_IP header (Client-Ip), which is injected into data/flood.db.php.
https://github.com/ca-arch/cvelist_example
https://euvd.enisa.europa.eu/vulnerability/EUVD-2005-3010
http://www.securityfocus.com/bid/14869