CVE-2020-22251: Phplist

Medium severity, CVSS 4.8. EPSS: 0.6% chance of exploitation in the next 30 days.

Cross Site Scripting (XSS) vulnerability in phpList 3.5.3 via the login name field in Manage Administrators when adding a new admin.

Affected products

• Phplist Phplist: up to and including 3.5.3

Published 2021-07-06. Last modified 2026-06-17.