Intelliants · Subrion Cms · CVE-2018-14840
**Name of the Vulnerable Software and Affected Versions**
Subrion CMS version 4.2.1
**Description**
The issue in Subrion CMS allows for XSS due to the `uploads/.htaccess` file not blocking .html file uploads, while it does block other file types such as .htm.
**Recommendations**
For Subrion CMS version 4.2.1, consider restricting or blocking .html file uploads in the `uploads/.htaccess` file as a temporary workaround until a patch is available.