Your website is vulnerable to clickjack attack because the MIDDLEWARE setting is missing django.middleware.clickjacking.XFrameOptionsMiddleware - so users can be tricked into interacting with your website without realising.

If unprotected, an invisible iframe pointing at your site can be placed on top of a innocent looking button on the malicious web page - so when the user clicks the innocent button they'are actually interacting with a button on your web page.

You may find iframes useful though, so, so Django allows setting the policy to SAMEORIGIN via X_FRAME_OPTIONS = 'SAMEORIGIN'

So in practice, do this

MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
    'django.middleware.common.CommonMiddleware',
    ...
]

Instead of this

MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'django.middleware.common.CommonMiddleware',
    ...
]