gsd-2023-28439
Vulnerability from gsd
Modified
2023-12-13 01:20
Details
CKEditor4 is an open source what-you-see-is-what-you-get HTML editor. A cross-site scripting vulnerability has been discovered affecting Iframe Dialog and Media Embed packages. The vulnerability may trigger a JavaScript code after fulfilling special conditions: using one of the affected packages on a web page with missing proper Content Security Policy configuration; initializing the editor on an element and using an element other than `<textarea>` as a base; and destroying the editor instance. This vulnerability might affect a small percentage of integrators that depend on dynamic editor initialization/destroy mechanism. A fix is available in CKEditor4 version 4.21.0. In some rare cases, a security fix may be considered a breaking change. Starting from version 4.21.0, the Iframe Dialog plugin applies the `sandbox` attribute by default, which restricts JavaScript code execution in the iframe element. To change this behavior, configure the `config.iframe_attributes` option. Also starting from version 4.21.0, the Media Embed plugin regenerates the entire content of the embed widget by default. To change this behavior, configure the `config.embed_keepOriginalContent` option. Those who choose to enable either of the more permissive options or who cannot upgrade to a patched version should properly configure Content Security Policy to avoid any potential security issues that may arise from embedding iframe elements on their web page.
Aliases
Aliases
CVE-2023-28439


To clipboard 

{
   GSD: {
      alias: "CVE-2023-28439",
      id: "GSD-2023-28439",
   },
   gsd: {
      metadata: {
         exploitCode: "unknown",
         remediation: "unknown",
         reportConfidence: "confirmed",
         type: "vulnerability",
      },
      osvSchema: {
         aliases: [
            "CVE-2023-28439",
         ],
         details: "CKEditor4 is an open source what-you-see-is-what-you-get HTML editor. A cross-site scripting vulnerability has been discovered affecting Iframe Dialog and Media Embed packages. The vulnerability may trigger a JavaScript code after fulfilling special conditions: using one of the affected packages on a web page with missing proper Content Security Policy configuration; initializing the editor on an element and using an element other than `<textarea>` as a base; and destroying the editor instance. This vulnerability might affect a small percentage of integrators that depend on dynamic editor initialization/destroy mechanism.\n\nA fix is available in CKEditor4 version 4.21.0. In some rare cases, a security fix may be considered a breaking change. Starting from version 4.21.0, the Iframe Dialog plugin applies the `sandbox` attribute by default, which restricts JavaScript code execution in the iframe element. To change this behavior, configure the `config.iframe_attributes` option. Also starting from version 4.21.0, the Media Embed plugin regenerates the entire content of the embed widget by default. To change this behavior, configure the `config.embed_keepOriginalContent` option. Those who choose to enable either of the more permissive options or who cannot upgrade to a patched version should properly configure Content Security Policy to avoid any potential security issues that may arise from embedding iframe elements on their web page.",
         id: "GSD-2023-28439",
         modified: "2023-12-13T01:20:47.914646Z",
         schema_version: "1.4.0",
      },
   },
   namespaces: {
      "cve.org": {
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            ID: "CVE-2023-28439",
            STATE: "PUBLIC",
         },
         affects: {
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                  {
                     product: {
                        product_data: [
                           {
                              product_name: "ckeditor4",
                              version: {
                                 version_data: [
                                    {
                                       version_affected: "=",
                                       version_value: "< 4.21.0",
                                    },
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         data_format: "MITRE",
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                  value: "CKEditor4 is an open source what-you-see-is-what-you-get HTML editor. A cross-site scripting vulnerability has been discovered affecting Iframe Dialog and Media Embed packages. The vulnerability may trigger a JavaScript code after fulfilling special conditions: using one of the affected packages on a web page with missing proper Content Security Policy configuration; initializing the editor on an element and using an element other than `<textarea>` as a base; and destroying the editor instance. This vulnerability might affect a small percentage of integrators that depend on dynamic editor initialization/destroy mechanism.\n\nA fix is available in CKEditor4 version 4.21.0. In some rare cases, a security fix may be considered a breaking change. Starting from version 4.21.0, the Iframe Dialog plugin applies the `sandbox` attribute by default, which restricts JavaScript code execution in the iframe element. To change this behavior, configure the `config.iframe_attributes` option. Also starting from version 4.21.0, the Media Embed plugin regenerates the entire content of the embed widget by default. To change this behavior, configure the `config.embed_keepOriginalContent` option. Those who choose to enable either of the more permissive options or who cannot upgrade to a patched version should properly configure Content Security Policy to avoid any potential security issues that may arise from embedding iframe elements on their web page.",
               },
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         impact: {
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                  attackComplexity: "HIGH",
                  attackVector: "NETWORK",
                  availabilityImpact: "NONE",
                  baseScore: 4.7,
                  baseSeverity: "MEDIUM",
                  confidentialityImpact: "LOW",
                  integrityImpact: "LOW",
                  privilegesRequired: "NONE",
                  scope: "CHANGED",
                  userInteraction: "REQUIRED",
                  vectorString: "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N",
                  version: "3.1",
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                  refsource: "MISC",
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                  refsource: "MISC",
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               date: "2023-03-28",
               description: "CKEditor4 is an open source what-you-see-is-what-you-get HTML editor. A cross-site scripting vulnerability has been discovered affecting Iframe Dialog and Media Embed packages. The vulnerability may trigger a JavaScript code after fulfilling special conditions: using one of the affected packages on a web page with missing proper Content Security Policy configuration; initializing the editor on an element and using an element other than `<textarea>` as a base; and destroying the editor instance. This vulnerability might affect a small percentage of integrators that depend on dynamic editor initialization/destroy mechanism. A fix is available in CKEditor4 version 4.21.0. In some rare cases, a security fix may be considered a breaking change. Starting from version 4.21.0, the Iframe Dialog plugin applies the `sandbox` attribute by default, which restricts JavaScript code execution in the iframe element. To change this behavior, configure the `config.iframe_attributes` option. Also starting from version 4.21.0, the Media Embed plugin regenerates the entire content of the embed widget by default. To change this behavior, configure the `config.embed_keepOriginalContent` option. Those who choose to enable either of the more permissive options or who cannot upgrade to a patched version should properly configure Content Security Policy to avoid any potential security issues that may arise from embedding iframe elements on their web page.",
               fixed_versions: [
                  "4.21.0",
               ],
               identifier: "CVE-2023-28439",
               identifiers: [
                  "CVE-2023-28439",
                  "GHSA-vh5c-xwqv-cv9g",
               ],
               not_impacted: "All versions before 4.0, all versions starting from 4.21.0",
               package_slug: "npm/ckeditor",
               pubdate: "2023-03-22",
               solution: "Upgrade to version 4.21.0 or above.",
               title: "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')",
               urls: [
                  "https://nvd.nist.gov/vuln/detail/CVE-2023-28439",
                  "https://ckeditor.com/cke4/addon/iframe",
                  "https://ckeditor.com/cke4/addon/embed",
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               affected_versions: "All versions starting from 4.0 before 4.21.0",
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                  "CWE-79",
                  "CWE-937",
               ],
               date: "2023-03-28",
               description: "CKEditor4 is an open source what-you-see-is-what-you-get HTML editor. A cross-site scripting vulnerability has been discovered affecting Iframe Dialog and Media Embed packages. The vulnerability may trigger a JavaScript code after fulfilling special conditions: using one of the affected packages on a web page with missing proper Content Security Policy configuration; initializing the editor on an element and using an element other than `<textarea>` as a base; and destroying the editor instance. This vulnerability might affect a small percentage of integrators that depend on dynamic editor initialization/destroy mechanism. A fix is available in CKEditor4 version 4.21.0. In some rare cases, a security fix may be considered a breaking change. Starting from version 4.21.0, the Iframe Dialog plugin applies the `sandbox` attribute by default, which restricts JavaScript code execution in the iframe element. To change this behavior, configure the `config.iframe_attributes` option. Also starting from version 4.21.0, the Media Embed plugin regenerates the entire content of the embed widget by default. To change this behavior, configure the `config.embed_keepOriginalContent` option. Those who choose to enable either of the more permissive options or who cannot upgrade to a patched version should properly configure Content Security Policy to avoid any potential security issues that may arise from embedding iframe elements on their web page.",
               fixed_versions: [
                  "4.21.0",
               ],
               identifier: "CVE-2023-28439",
               identifiers: [
                  "CVE-2023-28439",
                  "GHSA-vh5c-xwqv-cv9g",
               ],
               not_impacted: "All versions before 4.0, all versions starting from 4.21.0",
               package_slug: "npm/ckeditor4",
               pubdate: "2023-03-22",
               solution: "Upgrade to version 4.21.0 or above.",
               title: "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')",
               urls: [
                  "https://nvd.nist.gov/vuln/detail/CVE-2023-28439",
                  "https://ckeditor.com/cke4/addon/iframe",
                  "https://ckeditor.com/cke4/addon/embed",
                  "https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-vh5c-xwqv-cv9g",
               ],
               uuid: "f62b720d-7920-435e-92d2-c86bf72eced8",
            },
         ],
      },
      "nvd.nist.gov": {
         cve: {
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            id: "CVE-2023-28439",
            lastModified: "2024-01-18T15:11:43.537",
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                        scope: "CHANGED",
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            published: "2023-03-22T21:15:18.607",
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      },
   },
}


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