Robuta

https://www.exploit-db.com/exploits/44391
OpenCMS 10.5.3 - Cross-Site Request Forgery. CVE-2018-8811 . webapps exploit for PHP platform
cross siteopencmsrequestforgeryphp
https://www.ionos.co.uk/digitalguide/hosting/cms/opencms-the-user-friendly-browser-cms/
OpenCms stands out with its pragmatic and easy-to-use drag-and-drop function. Try OpenCms templates and edit content via a WYSIWYG editor.
opencmsionosuk
https://www.opencms.org/en
OpenCms from Alkacon Software is a professional, easy-to-use CMS for managing large websites.
open source cmsuser friendlyopencms