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
from util.util import handle_chimp_response
from util.util import transform_member
from util.util import bad_resp_match

from requests.auth import HTTPBasicAuth
from json import dumps

import requests
import os

class ChimpRequester(object):
    """ChimpRequester sends authenticated requests to mailchimp to do various
    operations
    """
    
    def __init__(self,**kwargs):
        self._dc = "us13"
        self._api_version = "3.0"
        self._base_url = 'https://{}.api.mailchimp.com/{}/'.format(self._dc,self._api_version) 
        self._user_name = os.environ['MAILCHIMP_USER']
        self._api_key = os.environ['MAILCHIMP_AUTH']
        self._session = self._get_session(self._user_name,self._api_key)
  
    def _get_session(self,user,apikey):
         """
         _get_session returns a session with basic auth for mailchimp
         """
         s = requests.Session()
         s.auth = (user,apikey)
         return s
    
    @handle_chimp_response    
    def _post_request(self,path,body=""):
        """
        Return request object from POST request
        """
        r = self._session.post(self._base_url+path,dumps(body))
        return r
    
    @handle_chimp_response   
    def _get_request(self,path):
        """
        Return request object from GET request
        """
        r = self._session.get(self._base_url+path)
        return r
    
    @handle_chimp_response   
    def _patch_request(self,path,body=""):
        """
        Return request object from PATCH request
        """
        r = self._session.patch(self._base_url+path,body=body)
        return r
    
    @handle_chimp_response   
    def _put_request(self,path,body=""):
        """
        Return request object from PUT request
        """
        r = self._session.put(self._base_url+path,body)
        return r
    
    @handle_chimp_response   
    def _delete_request(self,path):
        """
        Return request object from DELETE request
        """
        r = self._session.delete(self._base_url+path)
        return r
        
        
    @transform_member 
    def add_member(self,list_id,data={}):
        """
        add_member adds a new contact to a mailchimp list
        """
        path = "lists/{}/members/".format(list_id)
        json_respose = self._post_request(path,data)
        return json_respose

    def get_list(self,list_id):
        """
        get_list returns a list of people on a mail chimp list 
        """
        path = "lists/{}/members".format(list_id)
        json_response = self._get_request(path)
        return json_response
   
    def is_list(self,list_id):
        """
        Check if a list exsits in MailChimp
        """
        path = "lists/{}".format(list_id)
        json_response = self._get_request(path)

        return bad_resp_match(str(json_response.status_code))


# helper classes to be used at a later time  
class ChimpList(object):
    """Object that holds a mail chimp with users"""
    
    def __init__(self,list_name,list_id,members):
        self.list_name = list_name 
        self.list_id = list_id
        self.members = self._process_members(members)
    
    def print_all(self):
        print("List Name:{}\nList ID:{}\nMembers:\n".format(self.list_name,self.list_id))
        for m in self._members:
            m.print_info()
 
    def _process_members(self,members):
       """Process the members into objects"""
       # list of members objects 
       p_m = []
       for m in members:
           p_m.append(self._process(m))
       return p_m
 
    def _process(self,member):
       """Process a single member and filter out data"""
       
       # Pull out the desired attrbutes 
       data = dict()
       data["ID"] = member["id"]
       data["EMAIL"] = member["email_address"]
       
       # copy data in merge_fields
       temp = member["merge_fields"].copy()
       data.update(temp)
       
       # Create a member object 
       p_m = ChimpMember(data)
       
       return p_m
       
    def insert_all(self,database):
        """Insert all members into database"""
        for m in self._members:
            m.insert_to_db(database)
                  
class ChimpMember(object):
    """Object holding a single members information"""
    
    def __init__(self,data):
        # TO-DO find better way to be explicit yet not use dicts
        # to not have key erros 
        self.id = data['ID']
        self.first_name = data['FNAME']
        self.last_name = data['LNAME']
        self.email = data['EMAIL']
        self.phone_number = data['NUMBER']
        self.asu_id = data['ASUID']
        self.class_standing = data['CLASS']
        
    
    def insert_to_db(self,database):
        """Insert chimpMember into database"""
        db_entry = Student(
            self.first_name, \
            self.last_name, \
            self.asu_id, \
            self.class_standing, \
            self.email, \
            self.phone_number \
        )
        
        database.session.add(db_entry)
        database.session.commit()

    def print_info(self):
        """"Print out memeber fields"""
        tmpl = ("First Name: {first_name}\n"
                "Last Name: {last_name}\n"
                "Email: {email}\n"
                "Phone number: {number}\n"
                "ASU ID: {asuid}\n"
                "Class Standing: {class_standing}\n")
        print(tmpl.format(
            first_name=self.first_name, \
            last_name=self.last_name, \
            email=self.email, \
            number=self.phone_number, \
            asuid=self.asu_id,
            class_standing=self.class_standing))
```

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

  A) CWE-94: Improper Control of Generation of Code ('Code Injection')
  B) CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')
  C) CWE-312: Cleartext Storage of Sensitive Information
  D) CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
  E) CWE-117: Improper Output Neutralization for Logs
  F) CWE-601: URL Redirection to Untrusted Site ('Open Redirect')
Answer: C