CVE-2020-23205: Monstra CMS

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

A stored cross site scripting (XSS) vulnerability in Monstra CMS version 3.0.4 allows attackers to execute arbitrary web scripts or HTML via crafted a payload entered into the "Site Name" field under the "Site Settings" module.

Affected products

• Monstra Monstra CMS: version 3.0.4 only

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