CVE-2025-1396
Full vulnerability record from the local CVENow database.
Description
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.
Severity
MEDIUM
CVSS score
5.3
(v3.1)
Vulnerability status
Analyzed
Source identifier
ed10eef1-636d-4fbe-9993-6890dfa878f8
Published
2025-09-26 08:15:38.040000
Last modified
2026-10-18 21:10:00.120000
View original CVE JSON
{
"id": "CVE-2025-1396",
"sourceIdentifier": "ed10eef1-636d-4fbe-9993-6890dfa878f8",
"published": "2025-09-26T08:15:38.040",
"lastModified": "2026-10-18T21:10:00.120",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "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.\n\n\nExploitation 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."
},
{
"lang": "es",
"value": "Existe una vulnerabilidad de enumeración de nombres de usuario en múltiples productos WSO2 cuando el inicio de sesión multiatributo está habilitado. En esta configuración, el sistema devuelve un mensaje de error distinto 'El usuario no existe' al formulario de inicio de sesión, independientemente de la configuración de validate_username. Este comportamiento permite a los actores maliciosos determinar qué nombres de usuario existen en el sistema basándose en discrepancias observables en las respuestas de la aplicación.\n\nLa explotación de esta vulnerabilidad podría ayudar en ataques de fuerza bruta, campañas de phishing dirigidas u otras técnicas de ingeniería social al confirmar la validez de los identificadores de usuario dentro del sistema."
}
],
"affected": [
{
"source": "ed10eef1-636d-4fbe-9993-6890dfa878f8",
"affectedData": [
{
"vendor": "WSO2",
"product": "WSO2 Identity Server",
"defaultStatus": "unaffected",
"versions": [
{
"version": "0",
"lessThan": "5.10.0",
"versionType": "custom",
"status": "unknown"
},
{
"version": "5.10.0",
"lessThan": "5.10.0.346",
"versionType": "custom",
"status": "affected"
},
{
"version": "5.11.0",
"lessThan": "5.11.0.395",
"versionType": "custom",
"status": "affected"
},
{
"version": "6.0.0",
"lessThan": "6.0.0.231",
"versionType": "custom",
"status": "affected"
},
{
"version": "6.1.0",
"lessThan": "6.1.0.223",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "WSO2",
"product": "WSO2 Open Banking IAM",
"defaultStatus": "unaffected",
"versions": [
{
"version": "2.0.0",
"lessThan": "2.0.0.390",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "WSO2",
"product": "WSO2 Identity Server as Key Manager",
"defaultStatus": "unaffected",
"versions": [
{
"version": "5.10.0",
"lessThan": "5.10.0.339",
"versionType": "custom",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "ed10eef1-636d-4fbe-9993-6890dfa878f8",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
"baseScore": 3.7,
"baseSeverity": "LOW",
"attackVector": "NETWORK",
"attackComplexity": "HIGH",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"availabilityImpact": "NONE"
},
"exploitabilityScore": 2.2,
"impactScore": 1.4
},
{
"source": "[email protected]",
"type": "Primary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"availabilityImpact": "NONE"
},
"exploitabilityScore": 3.9,
"impactScore": 1.4
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2025-09-30T15:43:25.782305Z",
"id": "CVE-2025-1396",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "ed10eef1-636d-4fbe-9993-6890dfa878f8",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-203"
}
]
}
],
"configurations": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:a:wso2:identity_server:5.10.0:*:*:*:*:*:*:*",
"matchCriteriaId": "F4F126CA-A2F9-44F4-968B-DF71765869E5"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:wso2:identity_server:5.11.0:*:*:*:*:*:*:*",
"matchCriteriaId": "2153AECE-020A-4C01-B2A6-F9F5D98E7EBE"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:wso2:identity_server:6.0.0:*:*:*:*:*:*:*",
"matchCriteriaId": "7B81C488-69D0-4A5C-AEED-31869C1BF5CA"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:wso2:identity_server:6.1.0:*:*:*:*:*:*:*",
"matchCriteriaId": "65CD2558-C60C-4296-8E96-D4D804C598F0"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:wso2:identity_server_as_key_manager:5.10.0:*:*:*:*:*:*:*",
"matchCriteriaId": "6BB34405-A2F1-461A-B51B-E103BB3680A1"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:wso2:open_banking_iam:2.0.0:*:*:*:*:*:*:*",
"matchCriteriaId": "D7C241A3-8EA0-41E4-ABF3-21B9D8E7A5BE"
}
]
}
]
}
],
"references": [
{
"url": "https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2025/WSO2-2025-3983/",
"source": "ed10eef1-636d-4fbe-9993-6890dfa878f8",
"tags": [
"Vendor Advisory"
]
}
]
}