CVE-2020-23209: Phplist

Medium severity, CVSS 5.4. EPSS: 0.5% chance of exploitation in the next 30 days.

A stored cross site scripting (XSS) vulnerability in phplist 3.5.3 allows attackers to execute arbitrary web scripts or HTML via a crafted payload entered into the "List Description" field under the "Edit A List" module.

Affected products

• Phplist Phplist: version 3.5.3 only

Published 2021-07-01. Last modified 2026-06-17.