CVE-2021-4406: Improper Neutralization of Special Elements used in a Command

An authenticated attacker is able to create alerts that trigger a stored XSS attack. POC go to the alert manager open the ITSM tab add a webhook with the URL/service token value ' -h && id | tee /tmp/ttttttddddssss ' whitespaces are tab characters click add click apply create a test alert The tes...