uploads/.htaccess in Subrion CMS 4.2.1 allows XSS because it does not block .html file uploads (but does block, for example, .htm file uploads).

Subrion CMS v4.2.1 is vulnerable to Stored XSS because of no escaping added to the tooltip information being displayed in multiple areas.

Subrion 4.2.1 is vulnerable to Improper Access control because user groups not having access to the Admin panel are able to access it (but not perform actions) if the Guests user group has access to the Admin panel.