Subrion CMS 4.2.1 allows _core/en/contacts/ XSS via the name, email, or phone parameter.
Search vulnerabilities
Subrion CMS 4.1.5 (and possibly earlier versions) allow CSRF to change the administrator password via the panel/members/edit/1 URI.
/panel/uploads in Subrion CMS 4.2.1 allows remote attackers to execute arbitrary PHP code via a .pht or .phar file, because the .htaccess file omits these.
Subrion CMS v4.2.1 allows XSS via the panel/configuration/general/ SITE TITLE parameter.
panel/uploads/#elf_l1_XA in Subrion CMS v4.2.1 allows XSS via an SVG file with JavaScript in a SCRIPT element.
There is Stored XSS in Subrion 4.2.1 via the admin panel URL configuration.
_core/admin/pages/add/ in Subrion CMS 4.2.1 has XSS via the titles[en] parameter.
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 before 4.1.4 has XSS.
Subrion CMS 4.1.5 has CSRF in blog/delete/.