CVE-2026-33823— Microsoft Team Events Portal Information Disclosure Vulnerability
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I. Basic Information for CVE-2026-33823
Vulnerability Information
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Vulnerability Title
Microsoft Team Events Portal Information Disclosure Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
Improper authorization in Microsoft Teams allows an authorized attacker to disclose information over a network.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
授权机制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Microsoft Teams 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Teams是美国微软（Microsoft）公司的一款用于在线会议、聊天、云存储功能的软件。 Microsoft Teams存在授权问题漏洞，该漏洞源于授权不当，可能导致授权攻击者通过网络披露信息。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
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Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Microsoft | Microsoft Teams | - | - |
II. Public POCs for CVE-2026-33823
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Microsoft · 2026-05-07 · 12 CVEs total
| CVE-2026-42826 | 10.0 CRITICAL | Azure DevOps Information Disclosure Vulnerability |
| CVE-2026-33109 | 9.9 CRITICAL | Azure Managed Instance for Apache Cassandra Remote Code Execution Vulnerability |
| CVE-2026-35428 | 9.6 CRITICAL | Azure Cloud Shell Spoofing Vulnerability |
| CVE-2026-33844 | 9.0 CRITICAL | Azure Managed Instance for Apache Cassandra Remote Code Execution Vulnerability |
| CVE-2026-32207 | 8.8 HIGH | Azure Machine Learning Notebook Spoofing Vulnerability |
| CVE-2026-35435 | 8.6 HIGH | Azure AI Foundry Elevation of Privilege Vulnerability |
| CVE-2026-34327 | 8.2 HIGH | Microsoft Partner Center Spoofing Vulnerability |
| CVE-2026-41105 | 8.1 HIGH | Azure Monitor Action Group Notification System Elevation of Privilege Vulnerability |
| CVE-2026-33111 | 7.5 HIGH | Copilot Chat (Microsoft Edge) Information Disclosure Vulnerability |
| CVE-2026-26129 | 7.5 HIGH | M365 Copilot Information Disclosure Vulnerability |
| CVE-2026-26164 | 7.5 HIGH | M365 Copilot Information Disclosure Vulnerability |
IV. Related Vulnerabilities
Same vendor: Microsoft
- CVE-2026-42826
Azure DevOps Information Disclosure Vulnerability - CVE-2026-35428
Azure Cloud Shell Spoofing Vulnerability - CVE-2026-35435
Azure AI Foundry Elevation of Privilege Vulnerability - CVE-2026-34327
Microsoft Partner Center Spoofing Vulnerability - CVE-2026-33844
Azure Managed Instance for Apache Cassandra Remote Code Exec
Same weakness: CWE-285
- CVE-2026-8241
Industrial Application Software IAS Canias ERP RMI iasGetSer - CVE-2026-42202
nova-toggle-5: Improper authorization on toggle endpoint all - CVE-2026-41572
Note Mark: Unauthenticated read of notes and assets in soft- - CVE-2026-7713
crocodilestick Calibre-Web-Automated Kobo auth-token Route k - CVE-2026-7709
janeczku Calibre-Web Endpoint kobo_auth.py generate_auth_tok
V. Comments for CVE-2026-33823
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