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CVE-2025-32016— Microsoft Identity Web Exposes Client Secrets and Certificate Information in Service Logs

Quick assessment

Affected
AzureAD microsoft-identity-web
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Microsoft Identity Web是Azure Active Directory开源的一个帮助使用Microsoft身份平台和Azure AD B2C创建受保护的Web应用程序和Web API。 Microsoft Identity Web存在日志信息泄露漏洞，该漏洞源于敏感信息可能暴露在服务日志中。

CVSS 4.7 · Medium EPSS 0.10% · P1
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I. Basic Information for CVE-2025-32016

Vulnerability Information
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Vulnerability Title
Microsoft Identity Web Exposes Client Secrets and Certificate Information in Service Logs
Source: CVE Program / CVE List V5
Vulnerability Description
Microsoft Identity Web is a library which contains a set of reusable classes used in conjunction with ASP.NET Core for integrating with the Microsoft identity platform (formerly Azure AD v2.0 endpoint) and AAD B2C. This vulnerability affects confidential client applications, including daemons, web apps, and web APIs. Under specific circumstances, sensitive information such as client secrets or certificate details may be exposed in the service logs of these applications. Service logs are intended to be handled securely. Service logs generated at the information level or credential descriptions containing local file paths with passwords, Base64 encoded values, or Client secret. Additionally, logs of services using Base64 encoded certificates or certificate paths with password credential descriptions are also affected if the certificates are invalid or expired, regardless of the log level. Note that these credentials are not usable due to their invalid or expired status. To mitigate this vulnerability, update to Microsoft.Identity.Web 3.8.2 or Microsoft.Identity.Abstractions 9.0.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过日志文件的信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft Identity Web 日志信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Identity Web是Azure Active Directory开源的一个帮助使用Microsoft身份平台和Azure AD B2C创建受保护的Web应用程序和Web API。 Microsoft Identity Web存在日志信息泄露漏洞，该漏洞源于敏感信息可能暴露在服务日志中。
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)

Affected Products

Vendor Product Affected Versions CPE Subscribe
AzureAD microsoft-identity-web >= 3.2.0, < 3.8.2 -

II. Public POCs for CVE-2025-32016

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III. Intelligence Information for CVE-2025-32016

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IV. Related Vulnerabilities

Same product: microsoft-identity-web
Same vendor: AzureAD
Same weakness: CWE-532

V. Comments for CVE-2025-32016

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