Classic Commerce has today been updated to version 1.0.3.
This is a minor security and bug fix release. Thanks to @stefanos82 for reporting the security issue, more details of which can be found at https://developer.woocommerce.com/2020/11/05/woocommerce-4-6-2-fix-release/.
As usual, notification of the update should appear in your admin dashboards.
Please note that there is no release 1.0.2.