GHSA-M94C-37G6-CJHC

Vulnerability from github – Published: 2021-08-23 19:42 – Updated: 2022-02-08 21:01
VLAI
Summary
Fake objects feature vulnerability allowing to execute JavaScript code using malformed HTML.
Details

Affected packages

The vulnerability has been discovered in Fake Objects plugin. All plugins with Fake Objects plugin dependency are affected:

Impact

A potential vulnerability has been discovered in CKEditor 4 Fake Objects package. The vulnerability allowed to inject malformed Fake Objects HTML, which could result in executing JavaScript code. It affects all users using the CKEditor 4 plugins listed above at version < 4.16.2.

Patches

The problem has been recognized and patched. The fix will be available in version 4.16.2.

For more information

Email us at security@cksource.com if you have any questions or comments about this advisory.

Acknowledgements

The CKEditor 4 team would like to thank Mika Kulmala (kulmik) for recognizing and reporting this vulnerability.

Severity
7.3 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "ckeditor4"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.16.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-37695"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-08-23T17:15:12Z",
    "nvd_published_at": "2021-08-13T00:15:00Z",
    "severity": "HIGH"
  },
  "details": "### Affected packages\nThe vulnerability has been discovered in [Fake Objects](https://ckeditor.com/cke4/addon/fakeobjects) plugin. All plugins with [Fake Objects](https://ckeditor.com/cke4/addon/fakeobjects) plugin dependency are affected:\n\n* [Fake Objects](https://ckeditor.com/cke4/addon/fakeobjects)\n* [Link](https://ckeditor.com/cke4/addon/link)\n* [Flash](https://ckeditor.com/cke4/addon/flash)\n* [Iframe](https://ckeditor.com/cke4/addon/iframe)\n* [Forms](https://ckeditor.com/cke4/addon/forms)\n* [Page Break](https://ckeditor.com/cke4/addon/pagebreak)\n\n### Impact\nA potential vulnerability has been discovered in CKEditor 4 [Fake Objects](https://ckeditor.com/cke4/addon/fakeobjects) package. The vulnerability allowed to inject malformed Fake Objects HTML, which could result in executing JavaScript code. It affects all users using the CKEditor 4 plugins listed above at version \u003c 4.16.2.\n\n### Patches\nThe problem has been recognized and patched. The fix will be available in version 4.16.2.\n\n### For more information\nEmail us at security@cksource.com if you have any questions or comments about this advisory.\n\n### Acknowledgements\nThe CKEditor 4 team would like to thank Mika Kulmala ([kulmik](https://github.com/kulmik)) for recognizing and reporting this vulnerability.\n",
  "id": "GHSA-m94c-37g6-cjhc",
  "modified": "2022-02-08T21:01:39Z",
  "published": "2021-08-23T19:42:15Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-m94c-37g6-cjhc"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-37695"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ckeditor/ckeditor4/commit/de3c001540715f9c3801aaa38a1917de46cfcf58"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/ckeditor/ckeditor4"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2021/11/msg00007.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NYA354LJP47KCVJMTUO77ZCX3ZK42G3T"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UVOYN2WKDPLKCNILIGEZM236ABQASLGW"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WAGNWHFIQAVCP537KFFS2A2GDG66J7XD"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpujan2022.html"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpuoct2021.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Fake objects feature vulnerability allowing to execute JavaScript code using malformed HTML."
}



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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

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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.



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