CVE-2026-116254

A vulnerability exists in rathena FluxCP (up to version 98cd4b8fd83228c11b36fb3d097b8e0f7c105a8d) affecting the PayPal IPN Handler component. Specifically, the verifyiprange function in lib/Flux/PaymentNotifyRequest.php is susceptible to an origin validation error due to the manipulation of the X...