Language: Python
Label: vulnerable
CWE: CWE-79 \u2014 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Code:
    def render_GET(self, request):
        template = env.get_template('generate_new.html')
        sites_len = len(get_all_canary_sites())
        now = datetime.datetime.now()
        return template.render(settings=settings, sites_len=sites_len, now=now).encode('utf8')