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CVE-2025-13909— Information Disclosure via Multi-Tenant Authentication Flows in WSO2 Identity Server Allows Cross-Tenant PII Exposure

CVSS 4.3 · Medium
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I. Basic Information for CVE-2025-13909

Vulnerability Information
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Vulnerability Title
Information Disclosure via Multi-Tenant Authentication Flows in WSO2 Identity Server Allows Cross-Tenant PII Exposure
Source: CVE Program / CVE List V5
Vulnerability Description
The system accepts authentication requests without sufficient validation to enforce tenant isolation when using Email OTP, SMS OTP, or Magic Link as first-factor authenticators. This failure to adequately separate user data between tenants can lead to the exposure of personally identifiable information. Successful exploitation allows an attacker to disclose personally identifiable information of users in different tenants, resulting in privacy violations and potential regulatory non-compliance. This may include unauthorized access to user details such as mobile numbers.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5

Affected Products

VendorProductAffected VersionsCPESubscribe
WSO2WSO2 Identity Server 7.0.0 ~ 7.0.0.134 -
WSO2WSO2 Carbon Identity Application Authentication Framework 7.0.78 ~ 7.0.78.162 -
WSO2WSO2 Carbon MagicLink Authenticator Module 1.1.22 ~ 1.1.22.6 -
WSO2WSO2 Carbon Abstract OTP Authenticator 1.0.5 ~ 1.0.5.4 -
WSO2Email OTP Authenticator 1.0.30 ~ 1.0.30.4 -

II. Public POCs for CVE-2025-13909

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III. Intelligence Information for CVE-2025-13909

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Vendor Advisories for CVE-2025-13909 (1)

Same Patch Batch · WSO2 · 2026-08-06 · 13 CVEs total

CVE-2026-543010.0 CRITICALAuthentication Bypass via JWT Algorithm Mismatch in Multiple WSO2 Products Allows Account
CVE-2026-17289.8 CRITICALPrivilege Escalation via System REST APIs in Multiple WSO2 Products Permits Admin Account
CVE-2025-150399.4 CRITICALAccount Takeover via Conditional Authentication Script Logic in Multiple WSO2 Products
CVE-2024-68325.9 MEDIUMAccount Lockout Failure via Secondary User Store Inaccessibility in Multiple WSO2 Products
CVE-2025-133945.4 MEDIUMCross-Site Request Forgery via Ajax Processor Endpoints in Multiple WSO2 Products Enables
CVE-2024-89954.9 MEDIUMAuthorization Code issued for Deleted User reuse in Multiple WSO2 Products Allows Unauthor
CVE-2026-06374.4 MEDIUMSensitive Information Disclosure via Event Publisher Logging in Multiple WSO2 Products
CVE-2025-118504.3 MEDIUMImproper Implicit Association via User Store Initialization in WSO2 Identity Server [Ident
CVE-2024-103024.0 MEDIUMImproper Input Validation via Signup Process in Multiple WSO2 Products Enables Content Man
CVE-2025-147793.8 LOWImproper Access Control via Secret Type Management API in WSO2 Identity Server
CVE-2025-137363.7 LOWUsername Enumeration via Login Interface in Multiple WSO2 Products Allows User Account Dis
CVE-2025-126272.4 LOWImproper Refresh Token Implementation via User Impersonation Flow in WSO2 Identity Server

IV. Related Vulnerabilities

Same product: WSO2 Identity Server
Same vendor: WSO2
Same weakness: CWE-200

V. Comments for CVE-2025-13909

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