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
# -*- coding: utf-8 -*-
"""
This file contains utility functions for use in the Pyramid view handling
"""

import hashlib
from os.path import exists
import datetime


def error_dict(error_type='generic_errors', errors=''):
    """
    Create a basic error dictionary for standard use with the intent of being passed to some other outside
    API or whatnot.
    :param type: A plural string without spaces that describes the errors.  Only one type of error should be sent.
    :param errors: A list of error strings describing the problems. A single string will be converted to a single item
    list containing that string.
    :return: A dictionary for the error to be passed.
    """
    if isinstance(errors, basestring):
        errors = [errors]
    if not isinstance(errors, list):
        raise TypeError('Type for "errors" must be a string or list of strings')
    if not all(isinstance(item, basestring) for item in errors):
        raise TypeError('Type for "errors" in the list must be a string')
    error = {'error_type': error_type,
             'errors': errors,
             }
    return error


def hash_password(password, salt):
    """
    Hashes a password with the sale and returns the hash
    :param password: a password string
    :type password: basestring
    :param salt: a salt hash
    :type salt: assumed to be bytes
    :return: a password digest, NOT a hex digest string
    """
    m = hashlib.sha512()
    m.update(password.encode('utf-8'))
    m.update(salt)
    return m.digest()


format_datetime = lambda timez, dt : timez.localize(dt).strftime("%Y-%m-%d %H:%M:%S")


def date_serializer(the_date, request):
    if isinstance(the_date, datetime.date):
        return str(the_date.isoformat())
    raise TypeError('Can not determine rendering for data given')


def time_serializer(the_time, request):
    if isinstance(the_time, datetime.time):
        return str(the_time.isoformat())
    raise TypeError('Can not determine rendering for data given')


```

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-327