GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2023-35171 (GCVE-0-2023-35171)

Vulnerability from cvelistv5 – Published: 2023-06-23 20:44 – Updated: 2024-11-07 18:46
VLAI
Title
Nextcloud Server vulnerable to open redirect on "Unsupported browser" warning
Summary
NextCloud Server and NextCloud Enterprise Server provide file storage for Nextcloud, a self-hosted productivity platform. Starting in version 26.0.0 and prior to version 26.0.2, an attacker could supply a URL that redirects an unsuspecting victim from a legitimate domain to an attacker's site. Nextcloud Server and Nextcloud Enterprise Server 26.0.2 contain a patch for this issue. No known workarounds are available.
Severity
4.1 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-07 18:46 UTC
CWE
  • CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
Impacted products
Vendor Product Version CPE status
nextcloud security-advisories Affected: >= 26.0.0, < 26.0.2
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T16:23:59.788Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h353-vvwv-j2r4",
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h353-vvwv-j2r4"
          },
          {
            "name": "https://github.com/nextcloud/server/pull/38194",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/nextcloud/server/pull/38194"
          },
          {
            "name": "https://hackerone.com/reports/1977222",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://hackerone.com/reports/1977222"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-35171",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-07T18:46:43.035003Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-07T18:46:56.587Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "security-advisories",
          "vendor": "nextcloud",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 26.0.0, \u003c 26.0.2"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "NextCloud Server and NextCloud Enterprise Server provide file storage for Nextcloud, a self-hosted productivity platform. Starting in version 26.0.0 and prior to version 26.0.2, an attacker could supply a URL that redirects an unsuspecting victim from a legitimate domain to an attacker\u0027s site. Nextcloud Server and Nextcloud Enterprise Server 26.0.2 contain a patch for this issue. No known workarounds are available."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-601",
              "description": "CWE-601: URL Redirection to Untrusted Site (\u0027Open Redirect\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-06-23T20:44:34.272Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h353-vvwv-j2r4",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h353-vvwv-j2r4"
        },
        {
          "name": "https://github.com/nextcloud/server/pull/38194",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/nextcloud/server/pull/38194"
        },
        {
          "name": "https://hackerone.com/reports/1977222",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://hackerone.com/reports/1977222"
        }
      ],
      "source": {
        "advisory": "GHSA-h353-vvwv-j2r4",
        "discovery": "UNKNOWN"
      },
      "title": "Nextcloud Server vulnerable to open redirect on \"Unsupported browser\" warning"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2023-35171",
    "datePublished": "2023-06-23T20:44:34.272Z",
    "dateReserved": "2023-06-14T14:17:52.180Z",
    "dateUpdated": "2024-11-07T18:46:56.587Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2023-35171",
      "date": "2026-09-17",
      "epss": "0.00593",
      "percentile": "0.46865"
    },
    "fkie_nvd": {
      "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:-:*:*:*\", \"versionStartIncluding\": \"26.0.0\", \"versionEndExcluding\": \"26.0.2\", \"matchCriteriaId\": \"CB3473C7-E5B9-44B1-AC74-F7224D9AB78B\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:*\", \"versionStartIncluding\": \"26.0.0\", \"versionEndExcluding\": \"26.0.2\", \"matchCriteriaId\": \"AE95CF9F-D964-4857-8805-2CE4CF2F6328\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"NextCloud Server and NextCloud Enterprise Server provide file storage for Nextcloud, a self-hosted productivity platform. Starting in version 26.0.0 and prior to version 26.0.2, an attacker could supply a URL that redirects an unsuspecting victim from a legitimate domain to an attacker\u0027s site. Nextcloud Server and Nextcloud Enterprise Server 26.0.2 contain a patch for this issue. No known workarounds are available.\"}]",
      "id": "CVE-2023-35171",
      "lastModified": "2024-11-21T08:08:05.190",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"security-advisories@github.com\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N\", \"baseScore\": 4.1, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"REQUIRED\", \"scope\": \"CHANGED\", \"confidentialityImpact\": \"LOW\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"NONE\"}, \"exploitabilityScore\": 2.3, \"impactScore\": 1.4}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N\", \"baseScore\": 6.1, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"REQUIRED\", \"scope\": \"CHANGED\", \"confidentialityImpact\": \"LOW\", \"integrityImpact\": \"LOW\", \"availabilityImpact\": \"NONE\"}, \"exploitabilityScore\": 2.8, \"impactScore\": 2.7}]}",
      "published": "2023-06-23T21:15:09.703",
      "references": "[{\"url\": \"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h353-vvwv-j2r4\", \"source\": \"security-advisories@github.com\", \"tags\": [\"Exploit\", \"Issue Tracking\", \"Vendor Advisory\"]}, {\"url\": \"https://github.com/nextcloud/server/pull/38194\", \"source\": \"security-advisories@github.com\", \"tags\": [\"Issue Tracking\", \"Patch\"]}, {\"url\": \"https://hackerone.com/reports/1977222\", \"source\": \"security-advisories@github.com\", \"tags\": [\"Exploit\", \"Issue Tracking\", \"Mitigation\", \"Third Party Advisory\"]}, {\"url\": \"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h353-vvwv-j2r4\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Exploit\", \"Issue Tracking\", \"Vendor Advisory\"]}, {\"url\": \"https://github.com/nextcloud/server/pull/38194\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Issue Tracking\", \"Patch\"]}, {\"url\": \"https://hackerone.com/reports/1977222\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Exploit\", \"Issue Tracking\", \"Mitigation\", \"Third Party Advisory\"]}]",
      "sourceIdentifier": "security-advisories@github.com",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"security-advisories@github.com\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-601\"}]}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-601\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-35171\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2023-06-23T21:15:09.703\",\"lastModified\":\"2026-06-17T06:04:32.763\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"NextCloud Server and NextCloud Enterprise Server provide file storage for Nextcloud, a self-hosted productivity platform. Starting in version 26.0.0 and prior to version 26.0.2, an attacker could supply a URL that redirects an unsuspecting victim from a legitimate domain to an attacker\u0027s site. Nextcloud Server and Nextcloud Enterprise Server 26.0.2 contain a patch for this issue. No known workarounds are available.\"}],\"affected\":[{\"source\":\"security-advisories@github.com\",\"affectedData\":[{\"vendor\":\"nextcloud\",\"product\":\"security-advisories\",\"versions\":[{\"version\":\"\u003e= 26.0.0, \u003c 26.0.2\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N\",\"baseScore\":4.1,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"REQUIRED\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.3,\"impactScore\":1.4},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N\",\"baseScore\":6.1,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.8,\"impactScore\":2.7}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-11-07T18:46:43.035003Z\",\"id\":\"CVE-2023-35171\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-601\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-601\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:-:*:*:*\",\"versionStartIncluding\":\"26.0.0\",\"versionEndExcluding\":\"26.0.2\",\"matchCriteriaId\":\"CB3473C7-E5B9-44B1-AC74-F7224D9AB78B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:*\",\"versionStartIncluding\":\"26.0.0\",\"versionEndExcluding\":\"26.0.2\",\"matchCriteriaId\":\"AE95CF9F-D964-4857-8805-2CE4CF2F6328\"}]}]}],\"references\":[{\"url\":\"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h353-vvwv-j2r4\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Exploit\",\"Issue Tracking\",\"Vendor Advisory\"]},{\"url\":\"https://github.com/nextcloud/server/pull/38194\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Issue Tracking\",\"Patch\"]},{\"url\":\"https://hackerone.com/reports/1977222\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Exploit\",\"Issue Tracking\",\"Mitigation\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h353-vvwv-j2r4\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Issue Tracking\",\"Vendor Advisory\"]},{\"url\":\"https://github.com/nextcloud/server/pull/38194\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Issue Tracking\",\"Patch\"]},{\"url\":\"https://hackerone.com/reports/1977222\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Issue Tracking\",\"Mitigation\",\"Third Party Advisory\"]}]}}",
    "redhat_vex": {
      "current_release_date": "2025-11-21T15:34:34+00:00",
      "cve": "CVE-2023-35171",
      "id": "CVE-2023-35171",
      "initial_release_date": "2023-06-23T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "NextCloud: Open redirect on \"Unsupported browser\" warning",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-35171.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2025-02-16T06:16:30Z",
      "cve": "CVE-2023-35171",
      "id": "CVE-2023-35171",
      "initial_release_date": "2023-06-27T01:25:09Z",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-35171",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-35171.json",
      "version": "5"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h353-vvwv-j2r4\", \"name\": \"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h353-vvwv-j2r4\", \"tags\": [\"x_refsource_CONFIRM\", \"x_transferred\"]}, {\"url\": \"https://github.com/nextcloud/server/pull/38194\", \"name\": \"https://github.com/nextcloud/server/pull/38194\", \"tags\": [\"x_refsource_MISC\", \"x_transferred\"]}, {\"url\": \"https://hackerone.com/reports/1977222\", \"name\": \"https://hackerone.com/reports/1977222\", \"tags\": [\"x_refsource_MISC\", \"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T16:23:59.788Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-35171\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-11-07T18:46:43.035003Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-11-07T18:46:50.951Z\"}}], \"cna\": {\"title\": \"Nextcloud Server vulnerable to open redirect on \\\"Unsupported browser\\\" warning\", \"source\": {\"advisory\": \"GHSA-h353-vvwv-j2r4\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV3_1\": {\"scope\": \"CHANGED\", \"version\": \"3.1\", \"baseScore\": 4.1, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"REQUIRED\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"LOW\"}}], \"affected\": [{\"vendor\": \"nextcloud\", \"product\": \"security-advisories\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003e= 26.0.0, \u003c 26.0.2\"}]}], \"references\": [{\"url\": \"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h353-vvwv-j2r4\", \"name\": \"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h353-vvwv-j2r4\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/nextcloud/server/pull/38194\", \"name\": \"https://github.com/nextcloud/server/pull/38194\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://hackerone.com/reports/1977222\", \"name\": \"https://hackerone.com/reports/1977222\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"NextCloud Server and NextCloud Enterprise Server provide file storage for Nextcloud, a self-hosted productivity platform. Starting in version 26.0.0 and prior to version 26.0.2, an attacker could supply a URL that redirects an unsuspecting victim from a legitimate domain to an attacker\u0027s site. Nextcloud Server and Nextcloud Enterprise Server 26.0.2 contain a patch for this issue. No known workarounds are available.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-601\", \"description\": \"CWE-601: URL Redirection to Untrusted Site (\u0027Open Redirect\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2023-06-23T20:44:34.272Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-35171\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-11-07T18:46:56.587Z\", \"dateReserved\": \"2023-06-14T14:17:52.180Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2023-06-23T20:44:34.272Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.