Cross-site scripting (XSS) vulnerability in admin/index.php in phpList before 2.10.19 allows remote attackers to inject arbitrary web script or HTML via the unconfirmed parameter to the user page.
https://www.htbridge.com/advisory/HTB23100
https://exchange.xforce.ibmcloud.com/vulnerabilities/77526
http://www.phplist.com/?lid=579