User Registration And Login System With Admin Panel Cross-site Scripting

EGavilanMedia User Registration and Login System With Admin Panel 1.0 is affected by cross-site scripting (XSS) in the Admin Panel - Manage User tab using the Full Name of the user. This vulnerability can result in the attacker injecting the XSS payload in the User Registration section and each time admin visits the manage user section from the admin panel, the XSS triggers and the attacker can steal the cookie according to the crafted payload. (2020-12-30, CVE-2020-29230)

EGavilanMedia User Registration and Login System With Admin Panel 1.0 is affected by cross-site scripting (XSS) in the Admin Profile Page. This vulnerability can result in the attacker injecting the XSS payload in Admin Full Name and each time admin visits the Profile page from the admin panel, the XSS triggers. (2020-12-30, CVE-2020-29231)

Cross Site Scripting (XSS) vulnerability via the 'Full Name' parameter in the User Registration section of User Registration & Login System with Admin Panel 1.0. (2020-12-23, CVE-2020-35252)

Cross site scripting is an attack where a web page executes code that is injected by an adversary. It usually appears, when users input is presented. This attack can be used to impersonate a user, take over control of the session, or even steal API keys.

The attack can be executed e.g. when you application injects the request parameter directly into the HTML code of the page returned to the user:

https://server.com/confirmation?message=Transaction+Complete

what results in:

<span>Confirmation: Transaction Complete</span>

In that case the message can be modified to become a valid Javascript code, e.g.:

https://server.com/confirmation?message=<script>dangerous javascript code here</script>

and it will be executed locally by the user's browser with full access to the user's personal application/browser data:

<span>Confirmation: <script>dangerous javascript code here</script></span>