CVE-2022-43118: Flatcore Flatcore-CMS

Medium severity, CVSS 6.1. EPSS: 0.4% chance of exploitation in the next 30 days.

A cross-site scripting (XSS) vulnerability in flatCore-CMS v2.1.0 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the Username text field.

Affected products

• Flatcore Flatcore-CMS: version 2.1.0 only

Published 2022-11-09. Last modified 2026-06-17.