CVE-2025-1396

published 2025-09-26

CVE-2025-1396: A username enumeration vulnerability exists in multiple WSO2 products when Multi-Attribute Login is enabled. In this configuration, the system returns a…

Priority P4 27 medium 5.3 CVSS 3.1

AV N AC L PR N UI N S U C L I N A N

A username enumeration vulnerability exists in multiple WSO2 products when Multi-Attribute Login is enabled. In this configuration, the system returns a distinct "User does not exist" error message to the login form, regardless of the validate_username setting. This behavior allows malicious actors to determine which usernames exist in the system based on observable discrepancies in the application's responses.

Exploitation of this vulnerability could aid in brute-force attacks, targeted phishing campaigns, or other social engineering techniques by confirming the validity of user identifiers within the system.

Affected

12 ranges

Vendor	Product	Version range	Fixed in
wso2	identity_server	—	—
wso2	identity_server	—	—
wso2	identity_server	—	—
wso2	identity_server	—	—
wso2	identity_server_as_key_manager	—	—
wso2	open_banking_iam	—	—
wso2	wso2_identity_server	>= 5.10.0 < 5.10.0.346	5.10.0.346
wso2	wso2_identity_server	>= 5.11.0 < 5.11.0.395	5.11.0.395
wso2	wso2_identity_server	>= 6.0.0 < 6.0.0.231	6.0.0.231
wso2	wso2_identity_server	>= 6.1.0 < 6.1.0.223	6.1.0.223
wso2	wso2_identity_server_as_key_manager	>= 5.10.0 < 5.10.0.339	5.10.0.339
wso2	wso2_open_banking_iam	>= 2.0.0 < 2.0.0.390	2.0.0.390

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