Directory traversal vulnerability in export.php in phpMyAdmin 2.5.5 and earlier allows remote attackers to read arbitrary files via .. (dot dot) sequences in the what parameter.
https://exchange.xforce.ibmcloud.com/vulnerabilities/15021
http://www.phpmyadmin.net/home_page/relnotes.php?rel=0
http://sourceforge.net/forum/forum.php?forum_id=350228
http://security.gentoo.org/glsa/glsa-200402-05.xml