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WordPress is naturally a blogging platform but with a very large community of user-base and a strong support for shopping cart platforms like WooCommerce.
PrestaShop is another opensource shopping cart framework built on PHP. It is active and has a lot of developers churning out themes and modules to expand its capabilities
This is primarily a light shopping cart system built as an opensource framework with quite a number of themes, plugins and support over the years. Its developers are based in Hong Kong and have quite been active with it. There are a lot of language translations for it as well.