A stored cross-site scripting (XSS) vulnerability in Plone CMS 5.2.3 exists in site-controlpanel via the "form.widgets.site_title" parameter.
- https://github.com/plone/Products.CMFPlone/issues/3255
- https://www.exploit-db.com/exploits/49668
- https://github.com/miguelc49/CVE-2021-29002-1