Microsoft Teams Isolated Webview Prototype Pollution Privilege Escalation Vulnerability

This vulnerability allows remote attackers to escalate privileges on affected installations of Microsoft Teams. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the Isolated Webview component. The issue results from the lack of control over modifications to attributes of object prototypes. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process.