The plugin is vulnerable to sensitive information disclosure due to a file path disclosure in the publicly accessible ~/db_backup_log.txt file which grants attackers the full path of the site, in addition to the path of database backup files.
https://example.com/wp-content/bps-backup/logs/db_backup_log.txt
https://example.com/wp-content/plugins/bulletproof-security/admin/htaccess/db_backup_log.txt