system: You are an expert security code reviewer. You will be shown a source code file along with a catalog of candidate CWE (Common Weakness Enumeration) categories with their official MITRE names. Your task is to list every distinct CWE from that catalog that is actually present in the code. The catalog is comprehensive for this dataset -- the answer is a (possibly small) subset of it.

OUTPUT FORMAT: Respond with a comma-separated list of CWE IDs in the form `CWE-N`, sorted in ascending numeric order, wrapped in a single \boxed{...}. Examples: `\boxed{CWE-79}` for one, `\boxed{CWE-22,CWE-79,CWE-327}` for three. Output the boxed answer ONLY -- no explanation, no other text.

user: ```python
from django.contrib import messages
from django.contrib.auth import login as django_login, authenticate
from django.shortcuts import render, redirect


# @login_required
from django.views import View
from django.views.generic import ListView

from core.forms import SignUpForm, LoginForm
from core.models import Profile


def signup(request):

    if request.method == 'POST':

        form = SignUpForm(request.POST)

        if form.is_valid():

            user = form.save()
            user.refresh_from_db()  # load the profile instance created by the signal
            user.profile.blog_name = form.cleaned_data.get('blog_name')
            user.profile.blog_description = form.cleaned_data.get('blog_description')
            user.save()
            raw_password = form.cleaned_data.get('password1')
            user = authenticate(username=user.username, password=raw_password)
            django_login(request, user)

            # Get next url parameter
            url = request.GET.get('next', 'home')

            # Redirect user
            return redirect(url)
    else:
        form = SignUpForm()
    return render(request, 'core/signup.html', {'form': form})


class LoginView(View):

    """
    Login view class
    """

    def get(self, request):
        """
        Show login form
        :param request: HttpRequest object
        :return: HttpResponse object with rendered login form
        """

        form = LoginForm()

        context = {'form': form}
        return render(request, 'core/login.html', context)

    def post(self, request):
        """
        Procces access data
        :param request: HttpRequest object
        :return: HttpResponse object with rendered login form
        """

        form = LoginForm(request.POST)

        if form.is_valid():
            username = form.cleaned_data.get('username')
            password = form.cleaned_data.get('password')

            # Check if credential access are ok
            user = authenticate(username=username, password=password)

            if user is None:
                # Show error message
                messages.error(request, "Ops! Incorrect credentials!")
            else:
                # Start authenticate user session
                django_login(request, user)

                # Get next url parameter
                url = request.GET.get('next', 'blogs')

                # Redirect user
                return redirect(url)

        context = {'form': form}
        return render(request, 'core/login.html', context)


class BlogsListView(ListView):

    """
    Blogs list generic view class
    """

    # Queryset from CustomUser data model
    queryset = Profile.objects.all()

    # View template
    template_name = 'blogs/list.html'

    # Getting queryset
    def get_queryset(self):
        result = super().get_queryset()
        return result

    # Getting custom context
    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context['tittle'] = 'Available blogs'
        context['claim'] = 'You can read all these blogs in WordPlease'
        return context
```

Candidate CWE catalog (every CWE that appears anywhere in this dataset):
  - CWE-20: Improper Input Validation
  - CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
  - CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
  - CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
  - CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
  - CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
  - CWE-94: Improper Control of Generation of Code ('Code Injection')
  - CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')
  - CWE-116: Improper Encoding or Escaping of Output
  - CWE-117: Improper Output Neutralization for Logs
  - CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
  - CWE-209: Generation of Error Message Containing Sensitive Information
  - CWE-215: Insertion of Sensitive Information Into Debugging Code
  - CWE-295: Improper Certificate Validation
  - CWE-312: Cleartext Storage of Sensitive Information
  - CWE-326: Inadequate Encryption Strength
  - CWE-327: Use of a Broken or Risky Cryptographic Algorithm
  - CWE-377: Insecure Temporary File
  - CWE-502: Deserialization of Untrusted Data
  - CWE-601: URL Redirection to Untrusted Site ('Open Redirect')
  - CWE-611: Improper Restriction of XML External Entity Reference
  - CWE-614: Sensitive Cookie in HTTPS Session Without 'Secure' Attribute
  - CWE-643: Improper Neutralization of Data within XPath Expressions ('XPath Injection')
  - CWE-730: OWASP Top Ten 2004 Category A9 - Denial of Service
  - CWE-732: Incorrect Permission Assignment for Critical Resource
  - CWE-776: Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')
  - CWE-918: Server-Side Request Forgery (SSRF)
  - CWE-943: Improper Neutralization of Special Elements in Data Query Logic
  - CWE-1004: Sensitive Cookie Without 'HttpOnly' Flag
  - CWE-1333: Inefficient Regular Expression Complexity

List every distinct CWE from the catalog above that is actually present in this code.
Answer: CWE-601