CVE-2020-36413: Cmsmadesimple CMS Made Simple

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

A stored cross scripting (XSS) vulnerability in CMS Made Simple 2.2.14 allows authenticated attackers to execute arbitrary web scripts or HTML via a crafted payload entered into the "Exclude these IP addresses from the "Site Down" status" parameter under the "Maintenance Mode" module.

Affected products

• Cmsmadesimple CMS Made Simple: version 2.2.14 only

Published 2021-07-02. Last modified 2026-06-17.