High, CVSS 8.1npmAmendedPublished
@udecode/plate-link does not sanitize URLs to prevent use of the javascript: scheme
CVE-2023-34245 · GHSA-4882-hxpr-hrvm
- Affected
- npm @udecode/plate-link < 20.0.0
- Fixed in
- 20.0.0· Vendor fix available
- Issue
- Impact Affected versions of the link plugin and link UI component do not sanitize URLs to prevent use of the javascript: scheme. As a result, links with JavaScript URLs can be inserted into the Plate editor through various means, including opening or pasting malicious content. Patches @udecode/plate-link 20.0.0 resolves this issue by introducing an allowedSchemes option to the link plugin, defaulting to ['http', 'https', 'mailto', 'tel']. URLs using a scheme that isn't in this list will not be rendered to the DOM. Workarounds If you are unable to update @udecode/plate-link to version 20.0.0, we recommend overriding the LinkElement and PlateFloatingLink components with implementations that explicitly check the URL scheme before rendering any anchor elements.
Recommended action: Upgrade to 20.0.0 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.