Power BI Report Server Spoofing Vulnerability

According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?
An attacker would have to send the victim a malicious file that the victim would have to execute.

According to the CVSS metric, privileges required is low (PR:L). What does that mean for this vulnerability?
The attacker must have permissions to access the target domain environment to be able to exploit this vulnerability.

According to the CVSS metric, a successful exploitation could lead to a scope change (S:C). What does this mean for this vulnerability?
The vulnerability is in the web server, but the malicious scripts execute in the victim’s browser on their machine.

According to the CVSS metrics, successful exploitation of this vulnerability could lead to major loss of confidentiality (C:H). What does that mean for this vulnerability?
There could be a loss of confidentiality if an unaware user clicked on a popup therefore creating an opportunity for an attacker to retrieve cookies or present the user with a dialog box to enter user credentials.

According to the CVSS metrics, successful exploitation of this vulnerability could lead to some loss of availability (A:L)? What does that mean for this vulnerability?
The attacker cannot fully deny service availability across all infrastructure, hence low effect on availability.

According to the CVSS metrics, successful exploitation of this vulnerability could lead to some loss of integrity (I:L)? What does that mean for this vulnerability?
An attacker could modify the contents of a reports file creating the potential opportunity for Java Script to be run as part of the Spoofing vulnerability.

Security updates
1.16.8420.13742 — https://support.microsoft.com/help/5023884