ubuntu-cve-2020-9440
Vulnerability from osv_ubuntu
Published
2020-03-10 17:15
Modified
2026-02-04 04:50
Summary
Details

A cross-site scripting (XSS) vulnerability in the WSC plugin through 5.5.7.5 for CKEditor 4 allows remote attackers to run arbitrary web script inside an IFRAME element by injecting a crafted HTML element into the editor.

Severity
6.1 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "ckeditor",
            "binary_version": "4.5.7+dfsg-2ubuntu0.16.04.1~esm3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "ckeditor",
        "purl": "pkg:deb/ubuntu/ckeditor@4.5.7+dfsg-2ubuntu0.16.04.1~esm3?arch=source\u0026distro=esm-apps/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.4.4+dfsg1-3",
        "4.5.6+dfsg-1",
        "4.5.7+dfsg-1",
        "4.5.7+dfsg-2",
        "4.5.7+dfsg-2ubuntu0.16.04.1~esm1",
        "4.5.7+dfsg-2ubuntu0.16.04.1~esm2",
        "4.5.7+dfsg-2ubuntu0.16.04.1~esm3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "ckeditor",
            "binary_version": "4.5.7+dfsg-2ubuntu0.18.04.1+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "ckeditor",
        "purl": "pkg:deb/ubuntu/ckeditor@4.5.7+dfsg-2ubuntu0.18.04.1+esm2?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.5.7+dfsg-2",
        "4.5.7+dfsg-2ubuntu0.18.04.1",
        "4.5.7+dfsg-2ubuntu0.18.04.1+esm1",
        "4.5.7+dfsg-2ubuntu0.18.04.1+esm2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "ckeditor",
            "binary_version": "4.12.1+dfsg-1ubuntu0.1+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "ckeditor",
        "purl": "pkg:deb/ubuntu/ckeditor@4.12.1+dfsg-1ubuntu0.1+esm2?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.11.1+dfsg-1",
        "4.12.1+dfsg-1",
        "4.12.1+dfsg-1ubuntu0.1",
        "4.12.1+dfsg-1ubuntu0.1+esm1",
        "4.12.1+dfsg-1ubuntu0.1+esm2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "ckeditor",
            "binary_version": "4.16.2+dfsg-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "ckeditor",
        "purl": "pkg:deb/ubuntu/ckeditor@4.16.2+dfsg-1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.16.0+dfsg-2",
        "4.16.2+dfsg-1"
      ]
    }
  ],
  "aliases": [],
  "details": "A cross-site scripting (XSS) vulnerability in the WSC plugin through 5.5.7.5 for CKEditor 4 allows remote attackers to run arbitrary web script inside an IFRAME element by injecting a crafted HTML element into the editor.",
  "id": "UBUNTU-CVE-2020-9440",
  "modified": "2026-02-04T04:50:54Z",
  "published": "2020-03-10T17:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-9440"
    },
    {
      "type": "REPORT",
      "url": "https://ckeditor.com/blog/CKEditor-4.14-with-Paste-from-LibreOffice-released/#security-issues-fixed"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2020-9440"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2020-9440"
  ]
}



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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.