Subrion CMS's admin grid sorting helper, gridGetSorting in includes/classes/ia.base.controller.admin.php, whitelists the (ASC/DESC) request parameter via inarray, but falls back to the raw, attacker-supplied GET parameter whenever the requested key is not present in the per-controller whitelist array: , which is then placed into %s with only backtick-quoting and no escaping.

Multiple reflected Cross-site Scripting (XSS) vulnerabilities in the installation module of Subrion CMS v4.2.1 allow attackers to execute arbitrary Javascript in the context of the user's browser via injecting a crafted payload into the dbuser, dbpwd, and dbname parameters.