system: You are an expert security code reviewer. You will be shown a source code file along with a multi-select question listing several CWE (Common Weakness Enumeration) categories. Your task is to identify which of the listed CWEs are present in the code.

OUTPUT FORMAT: Respond with the letter(s) of all correct options, sorted alphabetically and comma-separated, wrapped in a single \boxed{...}. Examples: `\boxed{A}` for one correct, `\boxed{A,C}` for two, `\boxed{A,C,E}` for three. Output the boxed answer ONLY -- no explanation, no other text.

user: ```python
import json

from django.core.serializers.json import DjangoJSONEncoder
from django.http import HttpResponse
#from django.utils.encoding import force_unicode
from django.utils.encoding import force_text
from django.utils.functional import Promise
from django.utils.translation import ugettext as _
from django.utils.cache import add_never_cache_headers
from django.views.generic.base import TemplateView

import logging
logger = logging.getLogger(__name__)


class LazyEncoder(DjangoJSONEncoder):
    """Encodes django's lazy i18n strings
    """
    def default(self, obj):
        if isinstance(obj, Promise):
            #return force_unicode(obj)
            return force_text(obj)
        return super(LazyEncoder, self).default(obj)


class JSONResponseMixin(object):
    is_clean = False

    def render_to_response(self, context):
        """ Returns a JSON response containing 'context' as payload
        """
        return self.get_json_response(context)

    def get_json_response(self, content, **httpresponse_kwargs):
        """ Construct an `HttpResponse` object.
        """
        response = HttpResponse(content,
                                content_type='application/json',
                                **httpresponse_kwargs)
        add_never_cache_headers(response)
        return response

    def post(self, *args, **kwargs):
        return self.get(*args, **kwargs)

    def get(self, request, *args, **kwargs):
        self.request = request
        response = None

        try:
            func_val = self.get_context_data(**kwargs)
            if not self.is_clean:
                assert isinstance(func_val, dict)
                response = dict(func_val)
                if 'result' not in response:
                    response['result'] = 'ok'
            else:
                response = func_val
        except KeyboardInterrupt:
            # Allow keyboard interrupts through for debugging.
            raise
        except Exception as e:

            logger.error('JSON view error: %s' % request.path, exc_info=True)

            # Come what may, we're returning JSON.
            if hasattr(e, 'message'):
                msg = e.message
                msg += repr(e)
            else:
                msg = _('Internal error') + ': ' + str(e)
            response = {'result': 'error',
                        'text': msg}

        dump = json.dumps(response, cls=LazyEncoder)
        return self.render_to_response(dump)


class JSONResponseView(JSONResponseMixin, TemplateView):
    pass

```

Which of the following CWE vulnerability categories are present in this code? Multiple options may be correct.

  A) CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
  B) CWE-611: Improper Restriction of XML External Entity Reference
  C) CWE-209: Generation of Error Message Containing Sensitive Information
  D) CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
  E) CWE-643: Improper Neutralization of Data within XPath Expressions ('XPath Injection')
  F) CWE-326: Inadequate Encryption Strength
Answer: C