PHP remote file inclusion vulnerability in ZeroBoard 4.1pl4 and earlier allows remote attackers to execute arbitrary PHP code by modifying the (1) _zb_path parameter to outlogin.php or (2) dir parameter to write.php to reference a URL on a remote web server that contains the code.
https://exchange.xforce.ibmcloud.com/vulnerabilities/18679
https://exchange.xforce.ibmcloud.com/vulnerabilities/18677
https://euvd.enisa.europa.eu/vulnerability/EUVD-2004-1416
http://www.securityfocus.com/bid/12103
http://securitytracker.com/id?1012677
http://secunia.com/advisories/13649
http://marc.info/?l=bugtraq&m=110391024404947&w=2
http://lists.grok.org.uk/pipermail/full-disclosure/2004-December/030224.html