DokuWiki before 2006-03-09c enables the debug feature by default, which allows remote attackers to obtain sensitive information by calling doku.php with the X-DOKUWIKI-DO HTTP header set to "debug".
https://exchange.xforce.ibmcloud.com/vulnerabilities/28819
https://euvd.enisa.europa.eu/vulnerability/EUVD-2006-4667
http://www.securityfocus.com/archive/1/445516/100/0/threaded
http://securityreason.com/securityalert/1537
http://security.gentoo.org/glsa/glsa-200609-10.xml
http://secunia.com/advisories/21936
http://retrogod.altervista.org/dokuwiki_2006-03-09b_cmd.html