The WP-DBManager WordPress plugin before 2.80.8 does not prevent administrators from running arbitrary commands on the server in multisite installations, where only super-administrators should.
The WP-DBManager (aka Database Manager) plugin before 2.7.2 for WordPress allows remote authenticated users to execute arbitrary commands via shell metacharacters in the (1) $backup['filepath'] (aka "Path to Backup:" field) or (2) $backup['mysqldumppath'] variable.