CVE-2025-13736
Username Enumeration via Login Interface in Multiple WSO2 Products Allows User Account Discovery
LOW 3.7
At a glance
- Source
- NVD
- EPSS
- EPSS 0.27 % · percentile 19 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- WSO2
- NVD status
- Analyzed
Description
When Multi-Attribute Login is enabled, the login interface fails to consistently mask the existence of user accounts. For valid users, the server resolves and displays their canonical username, while for non-existent users, it echoes the original input. This occurs regardless of the validate_username configuration. The discovery of valid usernames can increase the risk of brute force attacks, social engineering attacks, and targeted information leakage. Attackers can leverage this information to craft more effective phishing campaigns or social engineering tactics to compromise user accounts or extract sensitive data.
Weaknesses (CWE)
- CWE-203 — Observable Discrepancy
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | LOW 3.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N | WSO2 |
| CVSS 3.1 | LOW 3.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N | NVD · ed10eef1-636d-4fbe-9993-6890dfa878f8 (Secondary) |
European references
- ENISA EUVD · EUVD-2025-210626
- GCVE · GCVE-0-2025-13736
Affected configurations (NVD CPE)
cpe:2.3:a:wso2:api_manager:*:*:*:*:*:*:*:*≥ 3.1.0 < 3.1.0.351cpe:2.3:a:wso2:api_manager:*:*:*:*:*:*:*:*≥ 3.2.0 < 3.2.0.455cpe:2.3:a:wso2:api_manager:*:*:*:*:*:*:*:*≥ 4.0.0 < 4.0.0.375cpe:2.3:a:wso2:identity_server:*:*:*:*:*:*:*:*≥ 5.10.0 < 5.10.0.380cpe:2.3:a:wso2:identity_server:*:*:*:*:*:*:*:*≥ 5.11.0 < 5.11.0.427cpe:2.3:a:wso2:identity_server:*:*:*:*:*:*:*:*≥ 6.0.0 < 6.0.0.254cpe:2.3:a:wso2:identity_server:*:*:*:*:*:*:*:*≥ 6.1.0 < 6.1.0.255cpe:2.3:a:wso2:identity_server:*:*:*:*:*:*:*:*≥ 7.0.0 < 7.0.0.132cpe:2.3:a:wso2:identity_server:*:*:*:*:*:*:*:*≥ 7.1.0 < 7.1.0.40cpe:2.3:a:wso2:identity_server:*:*:*:*:*:*:*:*≥ 7.2.0 < 7.2.0.2cpe:2.3:a:wso2:identity_server_as_key_manager:*:*:*:*:*:*:*:*≥ 5.10.0 < 5.10.0.371cpe:2.3:a:wso2:open_banking_am:*:*:*:*:*:*:*:*≥ 2.0.0 < 2.0.0.400cpe:2.3:a:wso2:open_banking_iam:*:*:*:*:*:*:*:*≥ 2.0.0 < 2.0.0.420
Affected products
| Product | Versions |
|---|---|
| WSO2 · WSO2 Identity Server as Key Manager | unknown 0 < 5.10.0 ; affected 5.10.0 < 5.10.0.371 |
| WSO2 · WSO2 Identity Server | unknown 0 < 5.10.0 ; affected 5.10.0 < 5.10.0.380 ; affected 5.11.0 < 5.11.0.427 ; affected 6.0.0 < 6.0.0.254 ; affected 6.1.0 < 6.1.0.255 ; affected 7.0.0 < 7.0.0.132 |
| WSO2 · WSO2 Open Banking AM | unknown 0 < 2.0.0 ; affected 2.0.0 < 2.0.0.400 |
| WSO2 · WSO2 API Manager | unknown 0 < 3.1.0 ; affected 3.1.0 < 3.1.0.351 ; affected 3.2.0 < 3.2.0.455 ; affected 4.0.0 < 4.0.0.375 |
| WSO2 · WSO2 Open Banking IAM | unknown 0 < 2.0.0 ; affected 2.0.0 < 2.0.0.420 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |