The (1) verif_admin.php and (2) check_admin.php scripts in Truegalerie 1.0 allow remote attackers to gain administrator access via a request to admin.php without the connect parameter and with the loggedin parameter set to any value, such as 1.
Improper Input Validation 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.