CKEditor 5 is a modern JavaScript rich-text editor with an MVC architecture. From 45.0.0 until 47.7.4 and 48.5.1, the engine uses a vulnerable es-toolkit version whose prototype-pollution behavior can be reached while CKEditor processes incoming style attribute values. Crafted ed...
Vendor
ckeditor vulnerabilities
38 published CVES affecting ckeditor, from public sources (CVE.org, NVD, CISA KEV, FIRST EPSS, OSV).
- Total
- 38
- Critical
- 1
- High
- 3
- Medium
- 30
- Low
- 4
- Unscored
- 0
- CISA KEV
- 0
Products
- ckeditor/ckeditor 23
- ckeditor4 12
- ckeditor5 10
- fckeditor 4
- @ckeditor/ckeditor5-engine 3
- @ckeditor/ckeditor5-markdown-gfm 3
- @ckeditor/ckeditor5-clipboard 2
- @ckeditor/ckeditor5-html-support 2
- @ckeditor/ckeditor5-font 1
- @ckeditor/ckeditor5-html-embed 1
- @ckeditor/ckeditor5-image 1
- @ckeditor/ckeditor5-link 1
- @ckeditor/ckeditor5-list 1
- @ckeditor/ckeditor5-media-embed 1
- @ckeditor/ckeditor5-paste-from-office 1
- @ckeditor/ckeditor5-real-time-collaboration 1
- @ckeditor/ckeditor5-widget 1
- ckeditor 5-link 1
- enhanced image 1
Latest ckeditor CVEs
Newest publication first · page 1 of 2
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HighCVSS 8.1 EPSS 0.50%
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LowCVSS 3.1 EPSS 0.25%
CKEditor 5 is a modern JavaScript rich-text editor with an MVC architecture. From 29.0.0 until 47.7.4 and 48.5.1, specially crafted markup can trigger cross-site scripting when General HTML Support is enabled and specifically configured to allow object content. Processing that co...
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MediumCVSS 6.1 EPSS 0.32%
CKEditor 5 is a modern JavaScript rich-text editor with an MVC architecture. Starting in version 29.0.0 and prior to version 47.6.0, a cross-site scripting (XSS) vulnerability has been discovered in the General HTML Support feature. This vulnerability could be triggered by insert...
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MediumCVSS 5.4 EPSS 0.29%
A reflected cross-site scripting (XSS) vulnerability in CKeditor v46.1.0 & Angular v18.0.0 allows attackers to execute arbitrary code in the context of a user's browser via injecting a crafted payload.
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CVE-2025-58064 CKEditor is susceptible to Cross-Site Scripting (XSS) through its clipboard package
PublishedLowCVSS 2.3 EPSS 0.42%CKEditor 5 is a modern JavaScript rich-text editor with an MVC architecture. ckeditor5 and ckeditor5-clipboard versions 46.0.0 through 46.0.2 and 44.2.0 through 45.2.1 contain a Cross-Site Scripting (XSS) vulnerability. Ability to exploit could be triggered by a specific user act...
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LowCVSS 2.3 EPSS 0.60%
CKEditor 5 is a modern JavaScript rich-text editor with an MVC architecture. During a recent internal audit, a Cross-Site Scripting (XSS) vulnerability was discovered in the CKEditor 5 real-time collaboration package. This vulnerability affects user markers, which represent users...
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MediumCVSS 5.1 EPSS 0.52%
CKEditor 5 is a JavaScript rich-text editor. Starting in version 40.0.0 and prior to version 43.1.1, a Cross-Site Scripting (XSS) vulnerability is present in the CKEditor 5 clipboard package. This vulnerability could be triggered by a specific user action, leading to unauthorized...
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LowCVSS 3.1 EPSS 0.43%
CKEditor4 is an open source what-you-see-is-what-you-get HTML editor. A theoretical vulnerability has been identified in CKEditor 4.22 (and above). In a highly unlikely scenario where an attacker gains control over the https://cke4.ckeditor.com domain, they could potentially exec...
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CVE-2024-43407 Code Snippet GeSHi plugin has reflected cross-site scripting (XSS) vulnerability
PublishedMediumCVSS 6.1 EPSS 0.45%CKEditor4 is an open source what-you-see-is-what-you-get HTML editor. A potential vulnerability has been discovered in CKEditor 4 Code Snippet GeSHi plugin. The vulnerability allowed a reflected XSS attack by exploiting a flaw in the GeSHi syntax highlighter library hosted by the...
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CVE-2024-24816 Cross-site scripting (XSS) vulnerability in samples with enabled the preview feature
PublishedMediumCVSS 6.1 EPSS 1.7%CKEditor4 is an open source what-you-see-is-what-you-get HTML editor. A cross-site scripting vulnerability vulnerability has been discovered in versions prior to 4.24.0-lts in samples that use the preview feature. All integrators that use these samples in the production code can...
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MediumCVSS 6.1 EPSS 0.71%
CKEditor4 is an open source what-you-see-is-what-you-get HTML editor. A cross-site scripting vulnerability has been discovered in the core HTML parsing module in versions of CKEditor4 prior to 4.24.0-lts. It may affect all editor instances that enabled full-page editing mode or e...
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CriticalCVSS 9.8 EPSS 1.4%
A unrestricted file upload vulnerability was discovered in the ‘Browse and upload images’ feature of the CKEditor v1.2.3 plugin for Redmine, which allows arbitrary files to be uploaded to the server.
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MediumCVSS 6.1 EPSS 0.73%
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 a...
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CVE-2022-31175 Cross-site scripting caused by the editor instance destroying process in ckeditor5
PublishedMediumCVSS 4.7 EPSS 0.88%CKEditor 5 is a JavaScript rich text editor. A cross-site scripting vulnerability has been discovered affecting three optional CKEditor 5's packages in versions prior to 35.0.1. The vulnerability allowed to trigger a JavaScript code after fulfilling special conditions. The affect...
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HighCVSS 7.5 EPSS 2.5%
CKEditor4 is an open source what-you-see-is-what-you-get HTML editor. CKEditor4 prior to version 4.18.0 contains a vulnerability in the dialog plugin. The vulnerability allows abuse of a dialog input validator regular expression, which can cause a significant performance drop res...
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MediumCVSS 5.4 EPSS 1.2%
CKEditor4 is an open source what-you-see-is-what-you-get HTML editor. A vulnerability has been discovered in the core HTML processing module and may affect all plugins used by CKEditor 4 prior to version 4.18.0. The vulnerability allows someone to inject malformed HTML bypassing...
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MediumCVSS 5.4 EPSS 1.6%
CKEditor4 is an open source WYSIWYG HTML editor. In affected version a vulnerability has been discovered in the core HTML processing module and may affect all plugins used by CKEditor 4. The vulnerability allowed to inject malformed comments HTML bypassing content sanitization, w...
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MediumCVSS 5.4 EPSS 1.3%
CKEditor4 is an open source WYSIWYG HTML editor. In affected versions a vulnerability has been discovered in the Advanced Content Filter (ACF) module and may affect all plugins used by CKEditor 4. The vulnerability allowed to inject malformed HTML bypassing content sanitization,...
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MediumCVSS 5.4 EPSS 1.3%
ckeditor is an open source WYSIWYG HTML editor with rich content support. 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...
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MediumCVSS 5.4 EPSS 1.2%
ckeditor is an open source WYSIWYG HTML editor with rich content support. A potential vulnerability has been discovered in CKEditor 4 Clipboard package. The vulnerability allowed to abuse paste functionality using malformed HTML, which could result in injecting arbitrary HTML int...
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MediumCVSS 5.4 EPSS 1.2%
ckeditor is an open source WYSIWYG HTML editor with rich content support. A vulnerability has been discovered in the clipboard Widget plugin if used alongside the undo feature. The vulnerability allows a user to abuse undo functionality using malformed widget HTML, which could re...
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MediumCVSS 6.1 EPSS 3.2% PoC
A cross-site scripting (XSS) vulnerability in the HTML Data Processor in CKEditor 4 4.14.0 through 4.16.x before 4.16.1 allows remote attackers to inject executable JavaScript code through a crafted comment because --!> is mishandled.
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MediumCVSS 6.5 EPSS 1.7%
CKEditor 5 provides a WYSIWYG editing solution. This CVE affects the following npm packages: ckeditor5-engine, ckeditor5-font, ckeditor5-image, ckeditor5-list, ckeditor5-markdown-gfm, ckeditor5-media-embed, ckeditor5-paste-from-office, and ckeditor5-widget. Following an internal...
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MediumCVSS 6.5 EPSS 1.8%
CKEditor 5 is an open source rich text editor framework with a modular architecture. The CKEditor 5 Markdown plugin (@ckeditor/ckeditor5-markdown-gfm) before version 25.0.0 has a regex denial of service (ReDoS) vulnerability. The vulnerability allowed to abuse link recognition re...
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MediumCVSS 6.5 EPSS 2.4%
It was possible to execute a ReDoS-type attack inside CKEditor 4 before 4.16 by persuading a victim to paste crafted URL-like text into the editor, and then press Enter or Space (in the Autolink plugin).
Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.