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
import asyncio
import discord

from discord.ext import commands, tasks

from api import Coin


class CryptoBot(commands.Cog):

    def __init__(self, bot):
        self.bot = bot
        self.coins_id = ['plant-vs-undead-token', 'smooth-love-potion', ]
        self.main_coin = 'slp'
        self.__temp_index = None
        self.instances = []
        self.get_coin_instances()

    def get_coin_instances(self):
        for coin_id in self.coins_id:
            self.instances.append(Coin(coin_id))

    async def change_status(self, status: str, activity_type=discord.ActivityType.watching):
        """
        Updates the bot status (activity)
        """
        activity = discord.Activity(name=status, type=activity_type)
        await self.bot.change_presence(status=discord.Status.online, activity=activity)

    def get_emoji_number(self, number: int):
        """
        Gets an emoji number by its pos.
        """
        return ('1️⃣','2️⃣','3️⃣','4️⃣','5️⃣','6️⃣','7️⃣','8️⃣','9️⃣','🔟')[int(number)]

    @tasks.loop(seconds=60.0)
    async def update_status(self):
        for instance in self.instances:
            instance.update_coin_info()
            if instance.symbol == self.main_coin:
                price = round(instance.current_usd_price, 2)
                percent = round(instance.day_change_percent, 2)
                emoji = '⬆️' if percent > 0 else '⬇️'

                status = \
                    f"{instance.symbol.upper()}: {price}$ {percent}% {emoji}"

                print(status)
                await self.change_status(status)

    @commands.Cog.listener()
    async def on_ready(self):
        print('Connected :)')
        self.update_status.start()

    @commands.command()
    async def force_start(self, ctx):
        await self.update_status()
        await ctx.send('Start forced!')

    @commands.command()
    async def add_coin(self, ctx, url: str=None):
        if not url or not ('coingecko.com' in url and '/coins/' in url):
            return await ctx.send(f":white_check_mark: No coingecko url provided")

        url_parts = url.split('/')
        coin_id = url_parts[-1]
        self.coins_id.append(coin_id)
        self.instances = []
        self.get_coin_instances()

        await ctx.send(f":white_check_mark: Coin added!")

    async def change_coin(self, ctx):
        coin = self.instances[self.__temp_index]
        self.main_coin = coin.symbol
        await ctx.send(f":white_check_mark: Main coin changed to: {coin.name}")
        await self.update_status()
        self.__temp_index = None

    def reverse_emoji_reaction(self, reaction: str):
        for index in range(0, 10):
            emoji = self.get_emoji_number(index)
            if emoji == str(reaction.emoji):
                self.__temp_index = index
                break

    @commands.command()
    async def coins(self, ctx):
        def check_reaction(reaction, user):
            self.reverse_emoji_reaction(reaction)
            print(self.__temp_index)
            return user != self.bot.user

        await self.update_status()
        coins = ''
        emojis = []

        for index, instance in enumerate(self.instances):
            emoji = self.get_emoji_number(index)
            emojis.append(emoji)
            coins += f">\t{emoji}. {instance.symbol.upper()}: {instance.name}\n"

        message = await ctx.send(f"> Available coins:\n{coins}")
        [await message.add_reaction(emoji) for emoji in emojis]
        try:
            await self.bot.wait_for(
                "reaction_add",
                timeout=10.0,
                check=check_reaction
            )
        except asyncio.TimeoutError:
            pass
        else:
            if self.__temp_index is not None:
                await self.change_coin(ctx)
```

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-20