A Cross-Site Request Forgery (CSRF) vulnerability was discovered in Subrion CMS 4.2.1 that allows a remote attacker to remove files on the server without a victim's knowledge, by enticing an authenticated user to visit an attacker's web page. The application fails to validate the CSRF token for a GET request. An attacker can craft a panel/uploads/read.json?cmd=rm URL (removing this token) and send it to the victim.

Subrion CMS 4.2.1 allows CSV injection via a phrase value within a language. This is related to phrases/add/ and languages/download/.

Subrion CMS 4.2.1 allows session fixation via an alphanumeric value in a session cookie.

Subrion 4.2.1 allows XSS via the panel/members/ Username, Full Name, or Email field, aka an "Admin Member JSON Update" issue.

Subrion CMS 4.2.1 allows _core/en/contacts/ XSS via the name, email, or phone parameter.

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.

/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.

_core/admin/pages/add/ in Subrion CMS 4.2.1 has XSS via the titles[en] parameter.

There is Stored XSS in Subrion 4.2.1 via the admin panel URL configuration.