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TI-2020-08198 Aliases CVE-2020-10146GHSA-8jq9-gwrr-4cqw

Microsoft Teams displayName stored cross-site scripting vulnerability

Priority LOW 30CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

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.

Why it matters now

EPSS 0.02321 83rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Teams (Microsoft): on or about October 2020

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftTeamsbefore on or about October 2020on or about October 2020Patch availableCNA
  • Teams VendorMicrosoft Affected before on or about October 2020 Fixed in on or about October 2020 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:teams:*:*:*:*:*:*:*:*before 2020-10-29VulnerableMicrosoft
  • cpe:2.3:a:microsoft:teams:*:*:*:*:*:*:*:* Versions before 2020-10-29 Vulnerable ·Microsoft

Remediation

  • Fix · CNA Teams (Microsoft) Fixed in on or about October 2020

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-10146
  2. 2026-10-03 Alias added: GHSA-8jq9-gwrr-4cqw

References

Exploit 1

  • TI-2023-04477 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
  • TI-2024-28020 Improper signature verification in Microsoft Teams CVSS 3.1CRITICAL 9.8
  • TI-2024-25478 Microsoft Teams for iOS Spoofing Vulnerability CVSS 3.1MEDIUM 6.5
  • TI-2026-46812 Microsoft Teams Elevation of Privilege Vulnerability CVSS 3.1CRITICAL 10.0
  • TI-2026-46862 Microsoft Teams Remote Code Execution Vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2024-27489 Improper signature verification in Microsoft Teams CVSS 3.1CRITICAL 9.8
See all 30 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences