04WebServer 1.42 does not adequately filter data that is written to log files, which could allow remote attackers to inject carriage return characters into the log file and spoof log entries.
https://exchange.xforce.ibmcloud.com/vulnerabilities/18034
http://www.soft3304.net/04WebServer/Security.html
http://www.security.org.sg/vuln/04webserver142.html
http://secunia.com/advisories/13159/