CVE-2021-45018: Catfish-CMS Catfish CMS

Medium severity, CVSS 6.1. EPSS: 0.6% chance of exploitation in the next 30 days.

Cross Site Scripting (XSS) vulnerability exists in Catfish <=6.3.0 via a Google search in url:/catfishcms/index.php/admin/Index/addmenu.htmland then the .html file on the website that uses this editor (the file suffix is allowed).

Affected products

• Catfish-CMS Catfish CMS: up to and including 6.3.0

Published 2021-12-15. Last modified 2026-06-17.