CKEditor 5 up to 35.0.0 cross site scripting

Summaryinfo

A vulnerability was found in CKEditor 5 up to 35.0.0. It has been rated as problematic. Affected by this issue is some unknown functionality. Performing a manipulation results in cross site scripting. This vulnerability is cataloged as CVE-2022-31175. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as problematic has been found in CKEditor 5 up to 35.0.0. This affects an unknown function. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. The summary by CVE is:

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 affected packages are `@ckeditor/ckeditor5-markdown-gfm`, `@ckeditor/ckeditor5-html-support`, and `@ckeditor/ckeditor5-html-embed`. The specific conditions are 1) Using one of the affected packages. In case of `ckeditor5-html-support` and `ckeditor5-html-embed`, additionally, it was required to use a configuration that allows unsafe markup inside the editor. 2) Destroying the editor instance and 3) Initializing the editor on an element and using an element other than `<textarea>` as a base. The root cause of the issue was a mechanism responsible for updating the source element with the markup coming from the CKEditor 5 data pipeline after destroying the editor. This vulnerability might affect a small percent of integrators that depend on dynamic editor initialization/destroy and use Markdown, General HTML Support or HTML embed features. The problem has been recognized and patched. The fix is available in version 35.0.1. There are no known workarounds for this issue.

The weakness was shared 08/04/2022 as GHSA-42wq-rch8-6f6j. The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2022-31175 since 05/18/2022. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

Upgrading to version 35.0.1 eliminates this vulnerability.

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Productinfo

Name

• CKEditor 5

Version

• 35.0

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CPE 2.2info

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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