ARD Meal Reservation Service Cross-Site Scripting Vulnerability

A Cross-Site Scripting (XSS) vulnerability has been identified in the meal reservation service ARD. This issue arises on the transaction confirmation page, specifically within the transactionID GET parameter. The vulnerability is due to inadequate input validation and output encoding, allowing attackers to inject malicious JavaScript that executes in the context of the user's browser. Such exploitation could result in session hijacking, cookie theft, and other harmful actions performed on behalf of the victim.

Impact

Exploitation of this vulnerability allows for Cross-Site Scripting, where injected scripts are executed in the context of the user's browser, potentially leading to session hijacking and theft of cookies.

Reproduction

To reproduce this vulnerability, send a GET request to the transaction confirmation page with a crafted transactionID parameter that includes malicious JavaScript, such as a script tag with an alert function. The injected script will execute in the user's browser, demonstrating the Cross-Site Scripting vulnerability.