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@ckeditor/ckeditor5-html-embed

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1 actionable advisory, newest first. Withdrawn advisories and news are excluded. Coverage is partial.

  1. Medium, CVSS 5.8npmAmendedPublished

    CKEditor5 cross-site scripting vulnerability caused by the editor instance destroying process

    CVE-2022-31175 · GHSA-42wq-rch8-6f6j

    Affected
    • npm @ckeditor/ckeditor5-html-embed < 35.0.1
    Fixed in
    35.0.1· Vendor fix available
    Issue
    Affected packages @ckeditor/ckeditor5-markdown-gfm @ckeditor/ckeditor5-html-support @ckeditor/ckeditor5-html-embed Impact A cross-site scripting vulnerability has been discovered affecting three optional CKEditor 5's packages. The vulnerability allowed to trigger a JavaScript code after fulfilling special conditions: a) 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, b) Initializing the editor on an element and using an element other than <textarea as a base, c) Destroying the editor instance. 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.…

    Recommended action: Upgrade to 35.0.1 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:osv.dev (1)github.com (2)Source checked Evidence →