export.php (aka the export script) in phpMyAdmin 4.x before 4.0.0-rc3 overwrites global variables on the basis of the contents of the POST superglobal array, which allows remote authenticated users to inject values via a crafted request.

Directory traversal vulnerability in the Export feature in phpMyAdmin 4.x before 4.0.0-rc3 allows remote authenticated users to read arbitrary files or possibly have unspecified other impact via a parameter that specifies a crafted export type.

phpMyAdmin 3.5.x before 3.5.8 and 4.x before 4.0.0-rc3, when a SaveDir directory is configured, allows remote authenticated users to execute arbitrary code by using a double extension in the filename of an export file, leading to interpretation of this file as an executable file by the Apache HTTP Server, as demonstrated by a .php.sql filename.

phpMyAdmin 3.5.x before 3.5.8 and 4.x before 4.0.0-rc3 allows remote authenticated users to execute arbitrary code via a /e\x00 sequence, which is not properly handled before making a preg_replace function call within the "Replace table prefix" feature.