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Ckeditor vulnerabilitiesNone on the known-exploited list.

Vendor
The short answer

Ckeditor has 32 published vulnerabilities across 16 products in our catalogue. None of them is on the list of flaws known to be exploited today. The most affected product is Ckeditor, with 24. If you run Ckeditor software, patch the exploited flaws first.

See the exploited flaws

We keep watching the known-exploited list.

Products

Which Ckeditor products have the most vulnerabilities?

Ckeditor leads with 24 published vulnerabilities. Open a product to see its versions and which of its flaws criminals are already using.

  1. Ckeditor24
  2. Fckeditor4
  3. Ckeditor52
  4. Ckeditor5-Markdown-Gfm2
  5. Ckeditor5-Font1
  6. Ckeditor5-Html-Embed1
  7. Ckeditor5-Html-Support1
  8. Ckeditor5-Image1
  9. Ckeditor 5-Link1
  10. Ckeditor5-Media-Embed1
Published vulnerabilities
Known exploited

Which Ckeditor vulnerabilities are being exploited?

This is the list that matters most: flaws criminals are using now.

None of Ckeditor's published vulnerabilities is on the list of flaws known to be exploited today. We keep watching that list.

Exploit likelihood

Which Ckeditor flaws are most likely to be used?

Ranked by the latest exploit-likelihood forecast: the chance each flaw is used in an attack in the next 30 days. A high severity score on its own doesn't tell you that. Flaws shared by many other makers' products are left out.

50% or more10% to 49%Under 10%
  1. 4.3%
    CVE-2020-9281Medium

    A cross-site scripting (XSS) vulnerability in the HTML Data Processor for CKEditor 4.0 before 4.14 allows remote attackers to inject arbitrary web script through a crafted "protected" comment (with the cke_protected...

    CVSS6.1Published7 Mar 2020
  2. 4.3%
    CVE-2012-4000Medium

    Cross-site scripting (XSS) vulnerability in the print_textinputs_var function in editor/dialog/fck_spellerpages/spellerpages/server-scripts/spellchecker.php in FCKeditor 2.6.7 and earlier allows remote attackers to...

    CVSS4.3Published12 Jul 2012
  3. 3.2%
    CVE-2021-33829Medium

    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...

    CVSS6.1Published9 Jun 2021
  4. 2.5%
    CVE-2014-4037Medium

    Cross-site scripting (XSS) vulnerability in editor/dialog/fck_spellerpages/spellerpages/server-scripts/spellchecker.php in FCKeditor before 2.6.11 and earlier allows remote attackers to inject arbitrary web script or...

    CVSS4.3Published11 Jun 2014
  5. 2.5%
    CVE-2022-24729High

    CKEditor4 is an open source what-you-see-is-what-you-get HTML editor.

    CVSS7.5Published16 Mar 2022
  6. 2.3%
    CVE-2021-26272Medium

    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).

    CVSS6.5Published26 Jan 2021
  7. 2.1%
    CVE-2022-48110Medium

    CKSource CKEditor 5 35.4.0 was discovered to contain a cross-site scripting (XSS) vulnerability via the Full Featured CKEditor5 widget.

    CVSS6.1Published13 Feb 2023
  8. 2.0%
    CVE-2020-27193Medium

    A cross-site scripting (XSS) vulnerability in the Color Dialog plugin for CKEditor 4.15.0 allows remote attackers to run arbitrary web script after persuading a user to copy and paste crafted HTML code into one of...

    CVSS6.1Published12 Nov 2020
  9. 2.0%
    CVE-2021-26271Medium

    It was possible to execute a ReDoS-type attack inside CKEditor 4 before 4.16 by persuading a victim to paste crafted text into the Styles input of specific dialogs (in the Advanced Tab for Dialogs plugin).

    CVSS6.5Published26 Jan 2021
  10. 1.9%
    CVE-2018-17960Medium

    CKEditor 4.x before 4.11.0 allows user-assisted XSS involving a source-mode paste.

    CVSS6.1Published14 Nov 2018
Every product

All Ckeditor products we track.

14 products, most vulnerabilities first. Find the ones you run, then open a product to see its versions and exploited flaws.

This directory lists the 14 Ckeditor products with at least one tracked version, of 16 in our catalogue.

Precursor Intelligence

Running Ckeditor? We'll keep checking.

Looking flaws up one at a time doesn't scale. Tell us what you run once, and we tell you which flaws matter to you, in what order, and keep watching for new ones.

  1. Tell us what you runPick your software from a list, or let us work it out from your website.
  2. We match it to every flawOver 400,000 published flaws, checked against your list.
  3. Ranked by real-world riskA 0 to 100 score, led by evidence criminals are using it.
  4. Told as soon as we knowAn alert by email, in the app or by webhook to your own tools.
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FAQ

Common questions, answered plainly.

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Our catalogue lists 32 published vulnerabilities across 16 products and 602 versions from Ckeditor.

None of Ckeditor's vulnerabilities is on the list of flaws known to be exploited today.

Ckeditor, with 24 published vulnerabilities. Its own page lists the ones known to be exploited.

Create a Precursor Intelligence account and track the Ckeditor products you run. We match them against every published flaw, give each one a risk score from 0 to 100 and tell you as soon as we spot one that affects you, by email, in the app or by webhook.

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