Eval injection vulnerability in CHXO Feedsplitter 2006-01-21 allows remote attackers to execute arbitrary PHP code via (1) the file specified as the value of the format parameter, and possibly (2) the RSS feed.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2006-4539
http://www.securityfocus.com/bid/19779
http://www.securityfocus.com/archive/1/444805/100/0/threaded