Microsoft Edge (Chromium-based) Spoofing Vulnerability

According to the CVSS metrics, successful exploitation of this vulnerability could lead to some loss of confidentiality (C:L),but lead to no loss of availability (A:N) and integrity (I:N)? What does that mean for this vulnerability?
An attacker who successfully exploited the vulnerability could view some sensitive information (Confidentiality) but not all resources within the impacted component may be divulged to the attacker. The attacker cannot make changes to disclosed information (Integrity) or limit access to the resource (Availability).

According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?
This vulnerability requires that a user have multiple browser instances open of the affected version of Microsoft Edge (Chromium-based), one of which is a specially crafted website hosted by the attacker. The user would need to access the URL of the malicious website and then click a popup displayed on that site.

Security updates
156.0.4314.42 — https://learn.microsoft.com/en-us/DeployEdge/microsoft-edge-relnotes-security