importbuddy.php in the BackupBuddy plugin 1.3.4, 2.1.4, 2.2.25, 2.2.28, and 2.2.4 for WordPress allows remote attackers to bypass authentication via a crafted integer in the step parameter.

importbuddy.php in the BackupBuddy plugin 1.3.4, 2.1.4, 2.2.25, 2.2.28, and 2.2.4 for WordPress does not require that authentication be enabled, which allows remote attackers to obtain sensitive information, or overwrite or delete files, via vectors involving a (1) direct request, (2) step=1 request, (3) step=2 or step=3 request, or (4) step=7 request.

importbuddy.php in the BackupBuddy plugin 1.3.4, 2.1.4, 2.2.25, 2.2.28, and 2.2.4 for WordPress does not reliably delete itself after completing a restore operation, which makes it easier for remote attackers to obtain access via subsequent requests to this script.