CKEditor 4

CKEditor 4.17.1

Fixed issues:

  • #4979: Fixed: Added cache key in #4761 started to breaking relative links for external CSS resources. The fix has been reverted and will be corrected in the upcoming release.

CKEditor 4.17.0

Security Updates:

  • Fixed XSS vulnerability in the core module reported by William Bowling.

    Issue summary: The vulnerability allowed to inject malformed comments HTML bypassing content sanitization, which could result in executing JavaScript code. See security advisory for more details.

  • Fixed XSS vulnerability in the core module reported by Maurice Dauer.

    Issue summary: The vulnerability allowed to inject malformed HTML bypassing content sanitization, which could result in executing JavaScript code. See security advisory for more details.

You can read more details in the relevant security advisory and contact us if you have more questions.

An upgrade is highly recommended!

Highlights:

Adobe ended support of Flash Player on December 31, 2020 and blocked Flash content from running in Flash Player beginning January 12, 2021. We have decided to deprecate and remove the Flash plugin from CKEditor 4 to help protect users' systems and discourage using insecure software.

New Features:

  • #3433: Marked required fields in dialogs with asterisk (*) symbol.
  • #4374: Integrated the Maximize plugin with browser's History API.
  • #4461: Introduced the possibility to delay editor initialization while it is in a detached DOM element.
  • #4462: Introduced support for reattaching editor container element to DOM.
  • #4612: Allow pasting images as Base64 from clipboard in all browsers except IE.
  • #4681: Allow drag and drop images as Base64.
  • #4750: Added notification for pasting and dropping unsupported file types into the editor.
  • #4807: [Chrome] Improved the performance of pasting large images. Thanks to FlowIT-JIT!
  • #4850: Added support for loading content templates from HTML files. Thanks to Fynn96!
  • #4874: Added the config.clipboard_handleImages configuration option for enabling and disabling built-in support for pasting and dropping images in the Clipboard plugin. Thanks to FlowIT-JIT!
  • #4026: Preview plugin now uses the editor#title property for the title of the preview window. Thanks to Ely!
  • #4467: Added support for inserting content next to a block widgets using keyboard navigation. Thanks to bunglegrind!

Fixed Issues:

  • #3757: [Firefox] Fixed: images pasted from clipboard are not inserted as Base64-encoded images.
  • #3876: Fixed: The Print plugin incorrectly prints links and images.
  • #4444: [Firefox] Fixed: Print preview is incorrectly loaded from CDN.
  • #4596: Fixed: Incorrect handling of HSL/HSLA values in CKEDITOR.tools.color.
  • #4597: Fixed: Incorrect color conversion for HSL/HSLA values in CKEDITOR.tools.color.
  • #4604: Fixed: CKEDITOR.plugins.clipboard.dataTransfer#getTypes() returns no types.
  • #4761: Fixed: Not all resources loaded by the editor respect the cache key.
  • #4783: Fixed: The Accessibility Help dialog does not contain info about focus being moved back to the editing area upon activating a toolbar button.
  • #4790: Fixed: Printing page is invoked before the printed page is fully loaded.
  • #4874: Fixed: Built-in support for pasting and dropping images in the Clipboard plugin restricts third party plugins from handling image pasting. Thanks to FlowIT-JIT!
  • #4888: Fixed: The CKEDITOR.dialog#setState() method throws error when there is no "OK" button in the dialog.
  • #4858: Fixed: The Autolink plugin incorrectly escapes the & characters when pasting links into the editor.
  • #4892: Fixed: Focus of buttons in dialogs is not visible enough in High Contrast mode.
  • #3858: Fixed: Pasting content in ENTER_BR enter mode crashes the editor.
  • #4891: Fixed: The Autogrow plugin applies fixed width to the editor.

API Changes:

Other Changes:

  • #4866: The Flash plugin is now deprecated and has been removed from CKEditor 4.
  • #4901: Redesigned buttons placement in the Content templates dialog to make it more UX friendly. Thanks to Fynn96!

CKEditor 4.16.2

Security Updates:

  • Fixed XSS vulnerability in the Clipboard plugin reported by Anton Subbotin.

    Issue summary: The vulnerability allowed to abuse paste functionality using malformed HTML, which could result in injecting arbitrary HTML into the editor. See security advisory for more details.

  • Fixed XSS vulnerability in the Widget plugin reported by Anton Subbotin.

    Issue summary: The vulnerability allowed to abuse undo functionality using malformed Widget HTML, which could result in executing JavaScript code. See security advisory for more details.

  • Fixed XSS vulnerability in the Fake Objects plugin reported by Mika Kulmala.

    Issue summary: The vulnerability allowed to inject malformed Fake Objects HTML, which could result in executing JavaScript code. See security advisory for more details.

You can read more details in the relevant security advisory and contact us if you have more questions.

An upgrade is highly recommended!

Fixed Issues:

  • #4777: Fixed: HTML comments in widgets not processed correctly.
  • #4733: Fixed: Link prevent duplicate anchors in text with styles.
    • #4728: Fixed: Multiple anchors in one line and multi-line with text style.
    • #3863: Fixed: Multiple anchors in single word with text style.
  • #3819: [Chrome] Fixed: After removing one of the two consecutive spaces, the   character appears in the editor instead of a space.
  • #4666: [IE] Introduce CSS.escape polyfill. Thanks to limingli0707!
    • #681: Fixed: Table elements (td, tr, th, ..) with an id that starts with dot (.) causes javascript runtime err.
    • #641: Fixed: UploadImage Plugin Widgets not working in IE, Opera, Safari, PhantomJS.
  • #3638: Fixed: Opening the same dialog twice causes it to become hidden under the dialog's page cover.
  • #4247: Fixed: Color Button's incorrect rendering on the first opening.
  • #4555: Fixed: Font styles with attributes are not applied correctly when used multiple times over the same selection.
  • #4782: [Firefox] Fixed: TypeError is thrown when switching to Source View and back while Autocomplete plugin is enabled.

CKEditor 4.16.1

Fixed Issues:

  • #4617: Fixed: Autocomplete is not accessible in inline editors.
  • #4493: Fixed: The drop-down label does not reflect the current value of the drop-down.
  • #1572: Fixed: A paragraph before or after a widget cannot be removed. Thanks to bunglegrind!
  • #4301: Fixed: Pasted content is overwritten when pasted in an initially empty editor with the div Enter mode.
  • #4351: Fixed: Incorrect values for RGBA/HSLA colors in Color Dialog.
  • #4509: Fixed: Incorrect handling of drag & drop inside widgets and nested editables.
  • #4611: [Android, iOS] Fixed: Incorrect hover styles for buttons in the toolbar on mobile devices.
  • #4652: Fixed: Event data set to false is treated as an event cancelation.

CKEditor 4.16.0

Security Updates:

  • Fixed ReDoS vulnerability in the Autolink plugin.

    Issue summary: It was possible to execute a ReDoS-type attack inside CKEditor 4 by persuading a victim to paste a specially crafted URL-like text into the editor and press Enter or Space.

  • Fixed ReDoS vulnerability in the Advanced Tab for Dialogs plugin.

    Issue summary: It was possible to execute a ReDoS-type attack inside CKEditor 4 by persuading a victim to paste a specially crafted text into the Styles dialog.

An upgrade is highly recommended!

New Features:

  • #2800: Unsupported image formats are now gracefully handled by the Paste from Word plugin on paste, additionally showing descriptive error messages.
  • #2800: Unsupported image formats are now gracefully handled by the Paste from LibreOffice plugin on paste, additionally showing descriptive error messages.
  • #3582: Introduced smart positioning of the Autocomplete panel used by the Mentions and Emoji plugins. The panel will now be additionally positioned related to the browser viewport to be always fully visible.
  • #4388: Added the option to remove an iframe created with the IFrame Dialog plugin from the sequential keyboard navigation using the tabindex attribute. Thanks to Timo Kirkkala!

Fixed Issues:

API Changes:

Other Changes:

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