woocommerce-gutenberg-products-block is a feature plugin for WooCommerce Gutenberg Blocks. An SQL injection vulnerability impacts all WooCommerce sites running the WooCommerce Blocks feature plugin between version 2.5.0 and prior to version 2.5.16. Via a carefully crafted URL, an exploit can be executed against the wc/store/products/collection-data?calculate_attribute_counts[][taxonomy]
endpoint that allows the execution of a read only sql query. There are patches for many versions of this package, starting with version 2.5.16. There are no known workarounds aside from upgrading.
github.com/woocommerce/woocommerce-gutenberg-products-block-ghsa-6hq4-w6wv-8wrp/pull/1
github.com/woocommerce/woocommerce-gutenberg-products-block/security/advisories/GHSA-6hq4-w6wv-8wrp
hackerone.com/reports/1260787
woocommerce.com/posts/critical-vulnerability-detected-july-2021/
wooengineering.wordpress.com/2021/07/14/incident-report-sql-injection-via-store-api/