CVE-2025-13909

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.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2025-4731/	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:wso2:identity_server::::::::
	cpe:2.3:a:wso2:identity_server::::::::

History

No history.

Information

Published : 2026-08-06 08:16

Updated : 2026-08-10 14:15

NVD link : CVE-2025-13909

Mitre link : CVE-2025-13909

CVE.ORG link : CVE-2025-13909

JSON object : View

Products Affected

wso2

identity_server

CWE

CWE-20

Improper Input Validation

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

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