Samples of disabled downloadable products are accessible in Magento Open Source prior to 1.9.4.2, and Magento Commerce prior to 1.14.4.2, Magento 2.1 prior to 2.1.18, Magento 2.2 prior to 2.2.9, Magento 2.3 prior to 2.3.2 due to inadequate validation of user input.
github.com/FriendsOfPHP/security-advisories/blob/master/magento/magento1ce/CVE-2019-7898.yaml
github.com/FriendsOfPHP/security-advisories/blob/master/magento/magento1ee/CVE-2019-7898.yaml
github.com/FriendsOfPHP/security-advisories/blob/master/magento/product-community-edition/CVE-2019-7898.yaml
magento.com/security/patches/magento-2.3.2-2.2.9-and-2.1.18-security-update-23
nvd.nist.gov/vuln/detail/CVE-2019-7898
web.archive.org/web/20220121051916/https://magento.com/security/patches/magento-2.3.2-2.2.9-and-2.1.18-security-update-23