CVE-2025-1396A username enumeration vulnerability exists in multiple WSO2 products when Multi-Attribute Login is enabled.
Updated under an hour ago ()
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It affects wso2 identity_server and 2 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 5.3 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- Weakness (CWE)
- CWE-203
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Oct 18, 2026
- First seen by InfoSec Signals
- Oct 18, 2026
Affected products
wso2 identity_server wso2:identity_server | 5.10.0; 5.11.0; 6.0.0; 6.1.0 | NVD |
wso2 identity_server_as_key_manager wso2:identity_server_as_key_manager | 5.10.0 | NVD |
wso2 open_banking_iam wso2:open_banking_iam | 2.0.0 | NVD |
References
- https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2025/WSO2-2025-3983/vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.