To update WordPress Core from BlogVault dashboard: 

Step 1: Go to the BlogVault website and sign in using your email ID. 

Step 2: On the BlogVault site listing pageselect the website in which you want to perform this operation.


Step 3: It'll take you to the Site Detail page. In this page, you can find a card to manage updates for Plugins, Themes, and WordPress core. Select the WordPress tab there.

Step 4: Click on the Update button

Step 5: One popup window will appear on the screen. Here you can enable take a new backup before performing this operation. Click on Confirm. 

==> Once updated, you will get a notification on your dashboard.