The Microsoft Teams online service contains a stored cross-site scripting vulnerability in the displayName parameter that can be exploited on Teams clients to obtain sensitive information such as authentication tokens and to possibly execute arbitrary commands. This vulnerability was fixed for all Teams users in the online service on or around October 2020.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-10146
Reference (s):
- https://github.com/oskarsve/ms-teams-rce
- URL: https://github.com/oskarsve/ms-teams-rce