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
#-*- coding: utf-8 -*-
#
# This file belongs to Gyrid Server.
#
# Copyright (C) 2012  Roel Huybrechts
# All rights reserved.

"""
Module that provides a few simple tests and conversions. Can for instance be used to validate configuration file values.

All tests take at least the value to validate as an argument. When the test passes, the value (or converted value)
should be returned. When the test fails it should raise a ValidationError.
"""

import random
import re

class ValidationError(Exception):
    """
    Exception to raise when the test fails.
    """
    def __init__(self, value=""):
        self.value = value

    def __str__(self):
        return repr(self.value)

def parseInt(value):
    """
    Parse the given value as an integer.
    """
    try:
        return int(value)
    except:
        raise ValidationError()

def parseFloat(value):
    """
    Parse the given value as a float.
    """
    try:
        return float(value)
    except:
        raise ValidationError()

def parseString(value):
    """
    Parse the given value as a string.
    """
    try:
        return str(value)
    except:
        raise ValidationError()

def isString(value):
    """
    Test if the given value is of type str.
    """
    if type(value) is str:
        return value
    else:
        raise ValidationError()

def isEmail(value):
    """
    Test if the given value is a valid e-mailaddress.
    """
    # E-mail validation regex from Django (django.core.validators)
    #   More information in LICENSE.
    email_re = re.compile(
        r"(^[-!#$%&'*+/=?^_`{}|~0-9A-Z]+(\.[-!#$%&'*+/=?^_`{}|~0-9A-Z]+)*"  # dot-atom
        # quoted-string, see also http://tools.ietf.org/html/rfc2822#section-3.2.5
        r'|^"([\001-\010\013\014\016-\037!#-\[\]-\177]|\\[\001-\011\013\014\016-\177])*"'
        r')@((?:[A-Z0-9](?:[A-Z0-9-]{0,61}[A-Z0-9])?\.)+[A-Z]{2,6}\.?$)'  # domain
        r'|\[(25[0-5]|2[0-4]\d|[0-1]?\d?\d)(\.(25[0-5]|2[0-4]\d|[0-1]?\d?\d)){3}\]$', re.IGNORECASE)
        # literal form, ipv4 address (SMTP 4.1.3)
    if email_re.match(value) == None:
        raise ValidationError()
    else:
        return value

```

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

  A) CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
  B) CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
  C) CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
  D) CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
  E) CWE-377: Insecure Temporary File
  F) CWE-1333: Inefficient Regular Expression Complexity
Answer: F