CVE-2018-1000670

Status: ModifiedMedium (6.1)—
Severity6.1Medium · CVSS 3.0
Exploitation probability0.65 %higher than 50% of CVEs
Active exploitationNonot in the CISA catalog
Public exploitNot knownno public code found

KOHA Library System version 16.11.x (up until 16.11.13) and 17.05.x (up until 17.05.05) contains a Cross Site Scripting (XSS) vulnerability in Multiple fields on multiple pages including /cgi-bin/koha/acqui/supplier.pl?op=enter , /cgi-bin/koha/circ/circulation.pl?borrowernumber=[number] , /cgi-bin/koha/serials/subscription-add.pl that can result in Privilege escalation by taking control of higher privileged users browser sessions. This attack appear to be exploitable via Victims must be socially engineered to visit a vulnerable webpage containing malicious payload. This vulnerability appears to have been fixed in 17.11.

CVSS

Base score
6.1
Version
3.0
Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days
0.65 %
Percentile among all scored CVEs
50
Score date
10/21/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

CWEs

References

Show 2 references

Raw JSON (NVD)

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{
  "id": "CVE-2018-1000670",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.0",
          "baseScore": 6.1,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.7,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
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  ],
  "published": "2018-09-06T19:29:00.627",
  "references": [
    {
      "url": "https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=19086",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=19086",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "KOHA Library System version 16.11.x (up until 16.11.13) and 17.05.x (up until 17.05.05) contains a Cross Site Scripting (XSS) vulnerability in Multiple fields on multiple pages including /cgi-bin/koha/acqui/supplier.pl?op=enter , /cgi-bin/koha/circ/circulation.pl?borrowernumber=[number] , /cgi-bin/koha/serials/subscription-add.pl that can result in Privilege escalation by taking control of higher privileged users browser sessions. This attack appear to be exploitable via Victims must be socially engineered to visit a vulnerable webpage containing malicious payload. This vulnerability appears to have been fixed in 17.11."
    },
    {
      "lang": "es",
      "value": "KOHA Library System en versiones 16.11.x (hasta la 16.11.13) y versiones 17.05.x (hasta la 17.05.05) contiene una vulnerabilidad Cross-Site Scripting (XSS) en múltiples campos de múltiples páginas, incluyendo /cgi-bin/koha/acqui/supplier.pl?op=enter, /cgi-bin/koha/circ/circulation.pl?borrowernumber=[number] y /cgi-bin/koha/serials/subscription-add.pl. Esto puede resultar en un escalado de privilegios obteniendo el control de las sesiones de navegación de usuarios con mayores privilegios. El ataque parece ser explotable si la víctima es engañada mediante ingeniería social para que visite una página web vulnerable que contiene una carga útil maliciosa. La vulnerabilidad parece haber sido solucionada en la versión 17.11."
    }
  ],
  "lastModified": "2026-06-17T01:33:03.897",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:koha:koha:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "3248F696-8686-4093-94DE-2D30EBE76239",
              "versionEndIncluding": "16.11.13",
              "versionStartIncluding": "16.11.0"
            },
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              "criteria": "cpe:2.3:a:koha:koha:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "20CF4C18-0421-40BA-BAFD-712040BE657A",
              "versionEndIncluding": "17.05.05",
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          "operator": "OR"
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  "sourceIdentifier": "cve@mitre.org"
}