Cross-Site Scripting (XSS) vulnerability was discovered in the meal reservation service ARD. The vulnerability exists in the transactionID GET parameter on the transaction confirmation page. Due to improper input validation and output encoding, an attacker can inject malicious JavaScript code that is executed in the context of a user s browser. This can lead to session hijacking, theft of cookies, and other malicious actions performed on behalf of the victim.
Payload
https://services.ard.fr/index.php?id=5869&ocid=183&token=1SemPugSUq3maSpK81871559797854161&transactionID=<script>alert(/OPENBUGBOUNTY/)</script>
Screenshot of vulnerability
