Import and export users and customers WordPress Plugin through 1.15.5.11 allows CSV injection via a customer's profile.
https://mega.nz/file/bSQnlS4R#UY_ozLkvXgXFKzqtTRKeB9RXGi6aEQF3X6eKXdSiBt0
https://cert.ikiu.ac.ir/public-files/news/document/CVE-99/CVE-2020-22277.pdf