The UpdraftPlus WordPress Backup Plugin WordPress plugin before 1.22.9 does not sanitise and escape the updraft_interval parameter before outputting it back in an admin page, leading to a Reflected Cross-Site Scripting (XSS) vulnerability.
The UpdraftPlus WordPress plugin Free before 1.22.3 and Premium before 2.22.3 do not properly validate a user has the required privileges to access a backup's nonce identifier, which may allow any users with an account on the site (such as subscriber) to download the most recent site & database backup.
The UpdraftPlus WordPress Backup Plugin WordPress plugin before 1.16.69 does not sanitise and escape the updraft_restore parameter before outputting it back in the Restore page, leading to a Reflected Cross-Site Scripting
The UpdraftPlus WordPress Backup Plugin WordPress plugin before 1.6.59 does not sanitise its updraft_service settings, allowing high privilege users to set malicious JavaScript payload in it and leading to a Stored Cross-Site Scripting issue
The UpdraftPlus WordPress Backup Plugin WordPress plugin before 1.16.66 does not sanitise and escape the backup_timestamp and job_id parameter before outputting then back in admin pages, leading to Reflected Cross-Site Scripting issues
The UpdraftPlus plugin through 1.13.12 for WordPress has SSRF in the updraft_ajax_handler function in /wp-content/plugins/updraftplus/admin.php via an httpget subaction. NOTE: the vendor reports that this does not cross a privilege boundary
The UpdraftPlus plugin through 1.13.12 for WordPress allows remote PHP code execution because the plupload_action function in /wp-content/plugins/updraftplus/admin.php has a race condition before deleting a file associated with the name parameter. NOTE: the vendor reports that this does not cross a privilege boundary