ghsa-6226-h7ff-ch6c
Vulnerability from github
Published
2021-08-23 19:40
Modified
2022-02-08 21:01
Severity ?
7.6 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
Summary
Widget feature vulnerability allowing to execute JavaScript code using undo functionality
Details

Affected packages

The vulnerability has been discovered in Widget plugin if used alongside Undo feature.

Impact

A potential vulnerability has been discovered in CKEditor 4 Widget package. The vulnerability allowed to abuse undo functionality using malformed widget HTML, which could result in executing JavaScript code. It affects all users using the CKEditor 4 plugins listed above at version >= 4.13.0.

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 Anton Subbotin (skavans) for recognizing and reporting this vulnerability.

Show details on source website

To clipboard 

{
   affected: [
      {
         package: {
            ecosystem: "npm",
            name: "ckeditor4",
         },
         ranges: [
            {
               events: [
                  {
                     introduced: "4.13.0",
                  },
                  {
                     fixed: "4.16.2",
                  },
               ],
               type: "ECOSYSTEM",
            },
         ],
      },
   ],
   aliases: [
      "CVE-2021-32808",
   ],
   database_specific: {
      cwe_ids: [
         "CWE-79",
      ],
      github_reviewed: true,
      github_reviewed_at: "2021-08-23T16:49:07Z",
      nvd_published_at: "2021-08-12T17:15:00Z",
      severity: "HIGH",
   },
   details: "### Affected packages\nThe vulnerability has been discovered in [Widget](https://ckeditor.com/cke4/addon/clipboard) plugin if used alongside [Undo](https://ckeditor.com/cke4/addon/undo) feature.\n\n### Impact\nA potential vulnerability has been discovered in CKEditor 4 [Widget](https://ckeditor.com/cke4/addon/widget) package. The vulnerability allowed to abuse undo functionality using malformed widget HTML, which could result in executing JavaScript code. It affects all users using the CKEditor 4 plugins listed above at version >= 4.13.0.\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 Anton Subbotin ([skavans](https://github.com/skavans)) for recognizing and reporting this vulnerability.\n",
   id: "GHSA-6226-h7ff-ch6c",
   modified: "2022-02-08T21:01:57Z",
   published: "2021-08-23T19:40:48Z",
   references: [
      {
         type: "WEB",
         url: "https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-6226-h7ff-ch6c",
      },
      {
         type: "ADVISORY",
         url: "https://nvd.nist.gov/vuln/detail/CVE-2021-32808",
      },
      {
         type: "PACKAGE",
         url: "https://github.com/ckeditor/ckeditor4",
      },
      {
         type: "WEB",
         url: "https://github.com/ckeditor/ckeditor4/releases/tag/4.16.2",
      },
      {
         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:C/C:H/I:L/A:N",
         type: "CVSS_V3",
      },
   ],
   summary: "Widget feature vulnerability allowing to execute JavaScript code using undo functionality",
}


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