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CVE-2025-1396

Estado: AnalizadaMedia (5.3)—

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

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (3)

Wso2 — Identity ServerWso2 — Identity Server AS KEY ManagerWso2 — Open Banking IAM

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2025-1396",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-1396",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-09-30T15:43:25.782305Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "ed10eef1-636d-4fbe-9993-6890dfa878f8",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 3.7,
          "attackVector": "NETWORK",
          "baseSeverity": "LOW",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 2.2
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "ed10eef1-636d-4fbe-9993-6890dfa878f8",
      "affectedData": [
        {
          "vendor": "WSO2",
          "product": "WSO2 Identity Server",
          "versions": [
            {
              "status": "unknown",
              "version": "0",
              "lessThan": "5.10.0",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "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"
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "WSO2",
          "product": "WSO2 Open Banking IAM",
          "versions": [
            {
              "status": "affected",
              "version": "2.0.0",
              "lessThan": "2.0.0.390",
              "versionType": "custom"
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "WSO2",
          "product": "WSO2 Identity Server as Key Manager",
          "versions": [
            {
              "status": "affected",
              "version": "5.10.0",
              "lessThan": "5.10.0.339",
              "versionType": "custom"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2025-09-26T08:15:38.040",
  "references": [
    {
      "url": "https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2025/WSO2-2025-3983/",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "ed10eef1-636d-4fbe-9993-6890dfa878f8"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "ed10eef1-636d-4fbe-9993-6890dfa878f8",
      "description": [
        {
          "lang": "en",
          "value": "CWE-203"
        }
      ]
    }
  ],
  "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."
    }
  ],
  "lastModified": "2026-06-17T08:39:03.753",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:wso2:identity_server:5.10.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F4F126CA-A2F9-44F4-968B-DF71765869E5"
            },
            {
              "criteria": "cpe:2.3:a:wso2:identity_server:5.11.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2153AECE-020A-4C01-B2A6-F9F5D98E7EBE"
            },
            {
              "criteria": "cpe:2.3:a:wso2:identity_server:6.0.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7B81C488-69D0-4A5C-AEED-31869C1BF5CA"
            },
            {
              "criteria": "cpe:2.3:a:wso2:identity_server:6.1.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "65CD2558-C60C-4296-8E96-D4D804C598F0"
            },
            {
              "criteria": "cpe:2.3:a:wso2:identity_server_as_key_manager:5.10.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "6BB34405-A2F1-461A-B51B-E103BB3680A1"
            },
            {
              "criteria": "cpe:2.3:a:wso2:open_banking_iam:2.0.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D7C241A3-8EA0-41E4-ABF3-21B9D8E7A5BE"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "ed10eef1-636d-4fbe-9993-6890dfa878f8"
}