CVE-2020-10146

5.4 mediumEPSS 2.3%

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.

Severity

CVSS 3.1

5.4 medium

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS: 2.3% chance of exploitation in the next 30 days; higher than 83% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2020-12-09
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

microsoft:teams

References

https://github.com/oskarsve/ms-teams-rce
https://github.com/oskarsve/ms-teams-rce

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