CVE-2025-13909 (GCVE-0-2025-13909)
Vulnerability from cvelistv5 – Published: 2026-08-06 07:33 – Updated: 2026-08-06 12:33
VLAI
EPSS
VEX
Title
Information Disclosure via Multi-Tenant Authentication Flows in WSO2 Identity Server Allows Cross-Tenant PII Exposure
Summary
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.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://security.docs.wso2.com/en/latest/security… | vendor-advisory |
Impacted products
5 products
| Vendor | Product | Version | |
|---|---|---|---|
| WSO2 | WSO2 Identity Server |
Affected:
7.0.0 , < 7.0.0.134
(custom)
Affected: 7.1.0 , < 7.1.0.42 (custom) |
|
| WSO2 | WSO2 Carbon Identity Application Authentication Framework |
Affected:
7.0.78 , < 7.0.78.162
(custom)
Affected: 7.8.23 , < 7.8.23.66 (custom) Unaffected: 7.8.550 , ≤ * (custom) |
|
| WSO2 | WSO2 Carbon MagicLink Authenticator Module |
Affected:
1.1.22 , < 1.1.22.6
(custom)
Affected: 1.1.31 , < 1.1.31.3 (custom) Unaffected: 1.1.45 , ≤ * (custom) |
|
| WSO2 | WSO2 Carbon Abstract OTP Authenticator |
Affected:
1.0.5 , < 1.0.5.4
(custom)
Affected: 1.0.10 , < 1.0.10.1 (custom) Unaffected: 1.0.24 , ≤ * (custom) |
|
| WSO2 | Email OTP Authenticator |
Affected:
1.0.30 , < 1.0.30.4
(custom)
Unaffected: 1.0.51 , ≤ * (custom) |
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This failure to adequately separate user data between tenants can lead to the exposure of personally identifiable information.\\n\\nSuccessful 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.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"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.\\n\\nSuccessful 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.\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-200\", \"description\": \"CWE-200: Exposure of Sensitive Information to an Unauthorized Actor\"}, {\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-20\", \"description\": \"CWE-20: Improper Input Validation\"}]}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:a:wso2:wso2_identity_server:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"7.0.0.134\", \"versionStartIncluding\": \"7.0.0\"}, {\"criteria\": \"cpe:2.3:a:wso2:wso2_identity_server:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"7.1.0.42\", \"versionStartIncluding\": \"7.1.0\"}], \"operator\": \"OR\"}, {\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:a:wso2:wso2_carbon_identity_application_authentication_framework:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"7.0.78.162\", \"versionStartIncluding\": \"7.0.78\"}, {\"criteria\": \"cpe:2.3:a:wso2:wso2_carbon_identity_application_authentication_framework:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"7.8.23.66\", \"versionStartIncluding\": \"7.8.23\"}, {\"criteria\": \"cpe:2.3:a:wso2:wso2_carbon_identity_application_authentication_framework:*:*:*:*:*:*:*:*\", \"vulnerable\": false, \"versionEndIncluding\": \"*\", \"versionStartIncluding\": \"7.8.550\"}], \"operator\": \"OR\"}, {\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:a:wso2:wso2_carbon_magiclink_authenticator_module:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"1.1.22.6\", \"versionStartIncluding\": \"1.1.22\"}, {\"criteria\": \"cpe:2.3:a:wso2:wso2_carbon_magiclink_authenticator_module:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"1.1.31.3\", \"versionStartIncluding\": \"1.1.31\"}, {\"criteria\": \"cpe:2.3:a:wso2:wso2_carbon_magiclink_authenticator_module:*:*:*:*:*:*:*:*\", \"vulnerable\": false, \"versionEndIncluding\": \"*\", \"versionStartIncluding\": \"1.1.45\"}], \"operator\": \"OR\"}, {\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:a:wso2:wso2_carbon_abstract_otp_authenticator:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"1.0.5.4\", \"versionStartIncluding\": \"1.0.5\"}, {\"criteria\": \"cpe:2.3:a:wso2:wso2_carbon_abstract_otp_authenticator:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"1.0.10.1\", \"versionStartIncluding\": \"1.0.10\"}, {\"criteria\": \"cpe:2.3:a:wso2:wso2_carbon_abstract_otp_authenticator:*:*:*:*:*:*:*:*\", \"vulnerable\": false, \"versionEndIncluding\": \"*\", \"versionStartIncluding\": \"1.0.24\"}], \"operator\": \"OR\"}, {\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:a:wso2:email_otp_authenticator:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"1.0.30.4\", \"versionStartIncluding\": \"1.0.30\"}, {\"criteria\": \"cpe:2.3:a:wso2:email_otp_authenticator:*:*:*:*:*:*:*:*\", \"vulnerable\": false, \"versionEndIncluding\": \"*\", \"versionStartIncluding\": \"1.0.51\"}], \"operator\": \"OR\"}], \"operator\": \"OR\"}], \"providerMetadata\": {\"orgId\": \"ed10eef1-636d-4fbe-9993-6890dfa878f8\", \"shortName\": \"WSO2\", \"dateUpdated\": \"2026-08-06T07:33:14.712Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2025-13909\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-06T12:33:19.505Z\", \"dateReserved\": \"2025-12-02T16:51:30.837Z\", \"assignerOrgId\": \"ed10eef1-636d-4fbe-9993-6890dfa878f8\", \"datePublished\": \"2026-08-06T07:33:14.712Z\", \"assignerShortName\": \"WSO2\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
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