CVE-2025-13909
Information Disclosure via Multi-Tenant Authentication Flows in WSO2 Identity Server Allows Cross-Tenant PII Exposure
CVSS Score
4.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-200 CWE-20 |
| Vendor | wso2 |
| Product | wso2 identity server |
| Published | Aug 6, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Affected Versions
WSO2 / WSO2 Identity Server
7.0.0 < 7.0.0.134 7.1.0 < 7.1.0.42
WSO2 / WSO2 Carbon Identity Application Authentication Framework
7.0.78 < 7.0.78.162 7.8.23 < 7.8.23.66
WSO2 / WSO2 Carbon MagicLink Authenticator Module
1.1.22 < 1.1.22.6 1.1.31 < 1.1.31.3
WSO2 / WSO2 Carbon Abstract OTP Authenticator
1.0.5 < 1.0.5.4 1.0.10 < 1.0.10.1
WSO2 / Email OTP Authenticator
1.0.30 < 1.0.30.4