A SQL injection vulnerability exists in Magento 2.2 prior to 2.2.10, Magento 2.3 prior to 2.3.3 or 2.3.2-p1. An authenticated user with privileges to an account with Newsletter Template editing permission could exfiltrate the Admin login data, and reset their password, effectively performing a privilege escalation.

As per the Magento Release 2.3.3, if you have already implemented the pre-release version of this patch (2.3.2-p1), it is highly recommended to promptly upgrade to 2.3.2-p2.

References

• https://nvd.nist.gov/vuln/detail/CVE-2019-8127
• https://web.archive.org/web/20220121051105/https://magento.com/security/patches/magento-2.3.3-and-2.2.10-security-update
• https://github.com/FriendsOfPHP/security-advisories/blob/master/magento/product-community-edition/CVE-2019-8127.yaml
• https://magento.com/security/patches/magento-2.3.3-and-2.2.10-security-update