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CVE-2020-2105

Status: ModifiedMedium (5.4)—

REST API endpoints in Jenkins 2.218 and earlier, LTS 2.204.1 and earlier were vulnerable to clickjacking attacks.

CVSS

Exploitation probability (EPSS)

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)

Jenkins — Jenkins

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2020-2105",
  "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
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.4,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.5,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "jenkinsci-cert@googlegroups.com",
      "affectedData": [
        {
          "vendor": "Jenkins project",
          "product": "Jenkins",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom",
              "lessThanOrEqual": "2.218"
            },
            {
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom",
              "lessThanOrEqual": "LTS 2.204.1"
            }
          ]
        }
      ]
    }
  ],
  "published": "2020-01-29T16:15:12.507",
  "references": [
    {
      "url": "http://www.openwall.com/lists/oss-security/2020/01/29/1",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "source": "jenkinsci-cert@googlegroups.com"
    },
    {
      "url": "https://access.redhat.com/errata/RHBA-2020:0402",
      "source": "jenkinsci-cert@googlegroups.com"
    },
    {
      "url": "https://access.redhat.com/errata/RHBA-2020:0675",
      "source": "jenkinsci-cert@googlegroups.com"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2020:0681",
      "source": "jenkinsci-cert@googlegroups.com"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2020:0683",
      "source": "jenkinsci-cert@googlegroups.com"
    },
    {
      "url": "https://jenkins.io/security/advisory/2020-01-29/#SECURITY-1704",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "jenkinsci-cert@googlegroups.com"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2020/01/29/1",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://access.redhat.com/errata/RHBA-2020:0402",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://access.redhat.com/errata/RHBA-2020:0675",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2020:0681",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2020:0683",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://jenkins.io/security/advisory/2020-01-29/#SECURITY-1704",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-1021"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "REST API endpoints in Jenkins 2.218 and earlier, LTS 2.204.1 and earlier were vulnerable to clickjacking attacks."
    },
    {
      "lang": "es",
      "value": "Los endpoint de la API REST en Jenkins versiones 2.218 y anteriores, versiones LTS 2.204.1 y anteriores, eran vulnerables a los ataques de secuestro de cliqueo."
    }
  ],
  "lastModified": "2026-06-17T03:11:46.010",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "EAACE161-BE2D-4BB8-9795-3D76F19433C1",
              "versionEndIncluding": "2.204.1"
            },
            {
              "criteria": "cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F0F83033-6C48-4AF2-BB2A-157A09D79538",
              "versionEndIncluding": "2.218"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "jenkinsci-cert@googlegroups.com"
}