Magento Vulnerability - CVE-2019-7915
A denial-of-service vulnerability exists in Magento 2.1 prior to 2.1.18 Magento 2.2 prior to 2.2.9 Magento 2.3 prior to 2.3.2. Under certain conditions an unauthenticated attacker could force the Magento store39s full page cache to serve a 404 page to customers.