WordPress Email Subscribers & Newsletters plugin before 4.2.3 is susceptible to arbitrary file retrieval via a flaw that allows unauthenticated file download and user information disclosure. An attacker can obtain sensitive information, modify data, and/or execute unauthorized administrative operations.
View the template here CVE-2019-19985.yaml
References:
https://www.wordfence.com/blog/2019/11/multiple-vulnerabilities-patched-in-email-subscribers-newsletters-plugin/