CVE-2025-1396 (GCVE-0-2025-1396)

Vulnerability from cvelistv5 – Published: 2025-09-26 07:52 – Updated: 2025-09-30 15:43
VLAI?
Summary
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 ?
3.7 (Low)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE
Assigner
References
Impacted products
Vendor Product Version
WSO2 WSO2 Identity Server Unknown: 0 , < 5.10.0 (custom)
Affected: 5.10.0 , < 5.10.0.346 (custom)
Affected: 5.11.0 , < 5.11.0.395 (custom)
Affected: 6.0.0 , < 6.0.0.231 (custom)
Affected: 6.1.0 , < 6.1.0.223 (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-1396",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-09-30T15:43:25.782305Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-09-30T15:43:31.106Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "WSO2 Identity Server",
          "vendor": "WSO2",
          "versions": [
            {
              "lessThan": "5.10.0",
              "status": "unknown",
              "version": "0",
              "versionType": "custom"
            },
            {
              "lessThan": "5.10.0.346",
              "status": "affected",
              "version": "5.10.0",
              "versionType": "custom"
            },
            {
              "lessThan": "5.11.0.395",
              "status": "affected",
              "version": "5.11.0",
              "versionType": "custom"
            },
            {
              "lessThan": "6.0.0.231",
              "status": "affected",
              "version": "6.0.0",
              "versionType": "custom"
            },
            {
              "lessThan": "6.1.0.223",
              "status": "affected",
              "version": "6.1.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "WSO2 Open Banking IAM",
          "vendor": "WSO2",
          "versions": [
            {
              "lessThan": "2.0.0.390",
              "status": "affected",
              "version": "2.0.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "WSO2 Identity Server as Key Manager",
          "vendor": "WSO2",
          "versions": [
            {
              "lessThan": "5.10.0.339",
              "status": "affected",
              "version": "5.10.0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eA 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\u0027s responses.\u003cbr\u003e\u003c/p\u003e\u003cb\u003e\u003c/b\u003e\u003cp\u003eExploitation 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.\u003cbr\u003e\u003c/p\u003e\u003cb\u003e\u003c/b\u003e"
            }
          ],
          "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\u0027s 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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 3.7,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-203",
              "description": "CWE-203 Observable Discrepancy",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-26T08:19:45.872Z",
        "orgId": "ed10eef1-636d-4fbe-9993-6890dfa878f8",
        "shortName": "WSO2"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2025/WSO2-2025-3983/"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cspan style=\"background-color: transparent;\"\u003eFollow the instructions given on \u003c/span\u003e\u003ca target=\"_blank\" rel=\"nofollow\" href=\"https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2025/WSO2-2025-3983/#solution\"\u003e\u003cspan style=\"background-color: transparent;\"\u003ehttps://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2025/WSO2-2025-3983/#solution\u003c/span\u003e\u003c/a\u003e \u003cbr\u003e"
            }
          ],
          "value": "Follow the instructions given on  https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2025/WSO2-2025-3983/#solution https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2025/WSO2-2025-3983/#solution"
        }
      ],
      "source": {
        "advisory": "WSO2-2025-3983",
        "discovery": "INTERNAL"
      },
      "title": "Username Enumeration in Multiple WSO2 Products with Multi-Attribute Login Enabled",
      "x_generator": {
        "engine": "Vulnogram 0.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "ed10eef1-636d-4fbe-9993-6890dfa878f8",
    "assignerShortName": "WSO2",
    "cveId": "CVE-2025-1396",
    "datePublished": "2025-09-26T07:52:52.297Z",
    "dateReserved": "2025-02-17T14:17:42.038Z",
    "dateUpdated": "2025-09-30T15:43:31.106Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-1396\",\"sourceIdentifier\":\"ed10eef1-636d-4fbe-9993-6890dfa878f8\",\"published\":\"2025-09-26T08:15:38.040\",\"lastModified\":\"2025-10-06T13:44:11.523\",\"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\u0027s 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.\"}],\"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\":\"nvd@nist.gov\",\"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}]},\"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\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-1396\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-09-30T15:43:25.782305Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-09-30T15:43:28.310Z\"}}], \"cna\": {\"title\": \"Username Enumeration in Multiple WSO2 Products with Multi-Attribute Login Enabled\", \"source\": {\"advisory\": \"WSO2-2025-3983\", \"discovery\": \"INTERNAL\"}, \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"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\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"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\"}], \"solutions\": [{\"lang\": \"en\", \"value\": \"Follow the instructions given on  https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2025/WSO2-2025-3983/#solution https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2025/WSO2-2025-3983/#solution\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cspan style=\\\"background-color: transparent;\\\"\u003eFollow the instructions given on \u003c/span\u003e\u003ca target=\\\"_blank\\\" rel=\\\"nofollow\\\" href=\\\"https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2025/WSO2-2025-3983/#solution\\\"\u003e\u003cspan style=\\\"background-color: transparent;\\\"\u003ehttps://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2025/WSO2-2025-3983/#solution\u003c/span\u003e\u003c/a\u003e \u003cbr\u003e\", \"base64\": false}]}], \"references\": [{\"url\": \"https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2025/WSO2-2025-3983/\", \"tags\": [\"vendor-advisory\"]}], \"x_generator\": {\"engine\": \"Vulnogram 0.2.0\"}, \"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\u0027s 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.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003eA 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\u0027s responses.\u003cbr\u003e\u003c/p\u003e\u003cb\u003e\u003c/b\u003e\u003cp\u003eExploitation 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.\u003cbr\u003e\u003c/p\u003e\u003cb\u003e\u003c/b\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-203\", \"description\": \"CWE-203 Observable Discrepancy\"}]}], \"providerMetadata\": {\"orgId\": \"ed10eef1-636d-4fbe-9993-6890dfa878f8\", \"shortName\": \"WSO2\", \"dateUpdated\": \"2025-09-26T08:19:45.872Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-1396\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-09-30T15:43:31.106Z\", \"dateReserved\": \"2025-02-17T14:17:42.038Z\", \"assignerOrgId\": \"ed10eef1-636d-4fbe-9993-6890dfa878f8\", \"datePublished\": \"2025-09-26T07:52:52.297Z\", \"assignerShortName\": \"WSO2\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.