Hello,
SiR / Madam,
sparta.eu Security Support Team, My Name Is SHIVAM KHAMBE From India. I Am Security Researcher's
I Am Found  Clickjacking Vulnerability ,
Your website deals with security issues.


What is Click Jacking Vulnerability ?

1.Clickjacking (User Interface redress attack, UI redress attack, UI redressing) is a malicious technique of tricking a Web user into clicking on something different from what the user perceives they are clicking on, thus potentially revealing confidential information or taking control of their computer while clicking on seemingly innocuous web pages.

2.The server didn't return an X-Frame-Options header which means that this website could be at risk of a clickjacking attack. The X-Frame-Options HTTP response header can be used to indicate whether or not a browser should be allowed to render a page in a <frame> or <iframe>. Sites can use this to avoid clickjacking attacks, by ensuring that their content is not embedded into other sites.

Server-side methods – the most common is X-Frame-Options. Server-side methods are recommended by security experts as an effective way to defend against clickjacking.

This vulnerability affects Web Server.
The Vulnerable Domain Is :-
https://sparta.eu/

Step to Reproduce :-
1 :- I have given Expolit as follows.
2 :- Copy it to a Notepad copy and Past it Save as .html file
3 :- And double-click that file and open a new tab on the browser

Expolit :-

<html>
<head>
<title>Clickjack test page</title>
</head>
<body>
<p><font size="5" color="#bf0000"> Website is vulnerable to clickjacking! 500x500</font></p>
<iframe src="https://sparta.eu/" width="500"
height="500"></iframe>
</body>
</html>

Impact:
By using Clickjacking technique, an attacker hijack's click's
meant for one page and route them to another page, most likely
for another application, domain, or both.

*# Everything is shown in the POC in a quick way   ...


Best Regards,