
CVE-2022-24728 – Cross-site Scripting in CKEditor4
https://notcve.org/view.php?id=CVE-2022-24728
16 Mar 2022 — 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 content sanitization, which could result in executing JavaScript code. This problem has been patched in version 4.18.0. There are currently no known workarounds. • https://ckeditor.com/cke4/release/CKEditor-4.18.0 • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •

CVE-2022-24729 – Regular expression Denial of Service in dialog plugin
https://notcve.org/view.php?id=CVE-2022-24729
16 Mar 2022 — 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 resulting in a browser tab freeze. A patch is available in version 4.18.0. There are currently no known workarounds. • https://ckeditor.com/cke4/release/CKEditor-4.18.0 • CWE-400: Uncontrolled Resource Consumption CWE-1333: Inefficient Regular Expression Complexity •

CVE-2021-37695 – Execution of JavaScript code using malformed HTML in ckeditor
https://notcve.org/view.php?id=CVE-2021-37695
12 Aug 2021 — ckeditor is an open source WYSIWYG HTML editor with rich content support. A 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 < 4.16.2. The problem has been recognized and patched. • https://github.com/ckeditor/ckeditor4/commit/de3c001540715f9c3801aaa38a1917de46cfcf58 • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •

CVE-2021-32809 – Arbitrary HTML injection vulnerability in ckeditor
https://notcve.org/view.php?id=CVE-2021-32809
12 Aug 2021 — ckeditor is an open source WYSIWYG HTML editor with rich content support. A potential vulnerability has been discovered in CKEditor 4 [Clipboard](https://ckeditor.com/cke4/addon/clipboard) package. The vulnerability allowed to abuse paste functionality using malformed HTML, which could result in injecting arbitrary HTML into the editor. It affects all users using the CKEditor 4 plugins listed above at version >= 4.5.2. The problem has been recognized and patched. • https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-7889-rm5j-hpgg • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') CWE-94: Improper Control of Generation of Code ('Code Injection') •

CVE-2021-32808 – Cross-site scripting in ckeditor via abuse of undo functionality
https://notcve.org/view.php?id=CVE-2021-32808
12 Aug 2021 — 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 result in executing JavaScript code. It affects all users using the CKEditor 4 plugins listed above at version >= 4.13.0. The problem has been recognized and patched. • https://github.com/ckeditor/ckeditor4/releases/tag/4.16.2 • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •

CVE-2021-26272
https://notcve.org/view.php?id=CVE-2021-26272
26 Jan 2021 — 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). Era posible ejecutar un ataque de tipo ReDoS dentro de CKEditor 4 versiones anteriores a 4.16, al persuadir a una víctima para pegar un texto similar a una URL en el editor y luego presionar Enter o Space (en el plugin Autolink) • https://ckeditor.com/blog/CKEditor-4.16-with-improved-image-pasting-High-Contrast-support-and-a-new-color-API/#security-comes-first • CWE-829: Inclusion of Functionality from Untrusted Control Sphere •

CVE-2020-27193
https://notcve.org/view.php?id=CVE-2020-27193
12 Nov 2020 — 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 editor inputs. Una vulnerabilidad de tipo cross-site scripting (XSS) en el plugin Color Dialog para CKEditor versión 4.15.0, permite a atacantes remotos ejecutar script web arbitrario después de persuadir a un usuario para que copie y pegue código HTML diseñado en una de las entradas del editor • https://ckeditor.com/blog/CKEditor-4.15.1-with-a-security-patch-released • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •