WordPress Backupbuddy Multiple Vulnerabilities

Summary
This host is installed with WordPress Backupbuddy plugin and is prone to multiple vulnerabilities.
Impact
Successful exploitation will allow attacker to bypass password authentication and obtain potentially sensitive informations. Impact Level: Application
Solution
No solution or patch was made available for at least one year since disclosure of this vulnerability. Likely none will be provided anymore. General solution options are to upgrade to a newer release, disable respective features, remove the product or replace the product by another one.
Insight
Multiple flaws are due to, - Fails to properly remove importbuddy.php during the final step of the backup process. - Improper handling of input passed via 'step' parameter to importbuddy.php script.
Affected
BackupBuddy plugin versions 1.3.4, 2.1.4, 2.2.4, 2.2.25, and 2.2.28
Detection
Send a HTTP GET request and check whether it is able to disclose some sensitive information or not.
References