In general, this can occur when there is a genuine Cross Site Request Forgery, or when Django's CSRF mechanism has not been used correctly. For POST forms, you need to ensure:
Your browser is accepting cookies.The view function passes a request to the template's render method.In the template, there is a {% csrf_token %} template tag inside each POST form that targets an internal URL.If you are not using CsrfViewMiddleware, then you must use csrf_protect on any views that use the csrf_token template tag, as well as those that accept the POST data.The form has a valid CSRF token. After logging in in another browser tab or hitting the back button after a login, you may need to reload the page with the form, because the token is rotated after a login.常见出现问题的情况是：在提交form表单的时候；没有在form表单中添加{% csrf_token %}
转载于:https://www.cnblogs.com/z18271397173/p/10027041.html
