CVE-2021–43438

Nithissh
2 min readDec 17, 2021

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Stored XSS Vulnerability

Discovered by Nithissh S

Vendor Homepage:

Bug Description:

Stored XSS generally occurs when user input is stored on the target server, such as in a database, in a message forum, visitor log, comment field, etc. And then a victim is able to retrieve the stored data from the web application without that data being made safe to render in the browser.

Steps to Produce:

  1. First of all we will have a look into the Source code
Signup page

2. Let’s register for an account with a name as an XSS payload

register name as xss payload

3. After the successful registration , While signing up Our XSS payload will get triggered

XSS got triggered

Impact:

This vulnerability has the potential to steal a user’s cookie and gain unauthorized access to that user’s account through the stolen cookie.

CVE Mitre : https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-43438

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