Skip to main content

Teams CVE-2020-10146

MEDIUM
Cross-site Scripting (XSS) (CWE-79)
2020-12-09 cret@cert.org
5.4
CVSS 3.1 · NVD
Share

Severity by source

NVD PRIMARY
5.4 MEDIUM
AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

Lifecycle Timeline

1
CVE Published
Dec 09, 2020 - 01:15 nvd
MEDIUM 5.4

DescriptionNVD

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.

AnalysisAI

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. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. 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. Affected products include: Microsoft Teams.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.

More in Teams

View all
CVE-2026-65667 CRITICAL
10.0 Aug 07

Privilege elevation in Microsoft Teams lets a remote, unauthenticated attacker gain unauthorized access across a network

CVE-2026-65768 CRITICAL
9.8 Aug 11

Path-traversal-driven remote code execution affects the Microsoft Teams client for Android in all builds prior to 1.0.0.

CVE-2024-42004 CRITICAL POC
9.8 Dec 18

A library injection vulnerability exists in Microsoft Teams (work or school) 24046.2813.2770.1094 for macOS. Rated criti

CVE-2024-41145 CRITICAL POC
9.8 Dec 18

A library injection vulnerability exists in the WebView.app helper app of Microsoft Teams (work or school) 24046.2813.27

CVE-2024-41138 CRITICAL POC
9.8 Dec 18

A library injection vulnerability exists in the com.microsoft.teams2.modulehost.app helper app of Microsoft Teams (work

CVE-2026-62896 CRITICAL
9.6 Aug 07

Privilege elevation in Microsoft Teams allows an authenticated attacker with low-level access to bypass authentication c

CVE-2023-4863 HIGH POC
8.8 Sep 12

Heap buffer overflow in libwebp in Google Chrome prior to 116.0.5845.187 and libwebp 1.3.2 allowed a remote attacker to

CVE-2026-65767 HIGH
7.6 Aug 11

Cross-site scripting in Microsoft Teams for Android (versions below 1.0.76.202611302) enables an authenticated attacker

CVE-2026-62918 HIGH
7.5 Aug 07

Cryptographic signature spoofing in Microsoft Teams exposes enterprise collaboration environments to unauthenticated ide

CVE-2023-29330 HIGH
8.8 Aug 08

Microsoft Teams Remote Code Execution Vulnerability. Rated high severity (CVSS 8.8), this vulnerability is remotely expl

CVE-2023-29328 HIGH
8.8 Aug 08

Microsoft Teams Remote Code Execution Vulnerability. Rated high severity (CVSS 8.8), this vulnerability is remotely expl

CVE-2026-42835 HIGH
8.1 Jun 09

Information disclosure in Microsoft Teams for Android allows an authenticated remote attacker to extract sensitive data

Share

CVE-2020-10146 vulnerability details – vuln.today

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy