Hello CMSMS Team,

I am reaching out to report a Self XSS vulnerability via Design Manager feature
from CMS Made Simple version 2.2.10. An attacker can create a new template and
add payload into "Name" field.
Steps to reproduce:
- Navigate to Admin Dashboard
- Click on Layout -> Design Manager feature
- Click on "Create a new Template"
- In "Name" field, input payload: <svg/onload=alert(document.domain)>
- Click "Submit"
- After submitting, malicious script will be executed.