libraries/auth/swekey/swekey.auth.lib.php in phpMyAdmin 3.x before 3.3.10.3 and 3.4.x before 3.4.3.2 does not properly manage sessions associated with Swekey authentication, which allows remote attackers to modify the SESSION superglobal array, other superglobal arrays, and certain swekey.auth.lib.php local variables via a crafted query string, a related issue to CVE-2011-2505.
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.