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TI-2023-17081 Aliases CVE-2023-34245GHSA-4882-hxpr-hrvm

Cross site scripting (XSS) in @udecode/plate-link

Priority LOW 38CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-79.

Summary

@udecode/plate-link is the link handler for the udecode/plate rich-text editor plugin system for Slate & React. 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. `@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. Users are advised to upgrade. Users unable to upgrade are advised to override the `LinkElement` and `PlateFloatingLink` components with implementations that explicitly check the URL scheme before rendering any anchor elements.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00445 38th percentileScored 2026-11-07
Fix Fixed plate (udecode): 20.0.0@udecode/plate-link (npm): 20.0.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
udecodeplatebefore 20.0.020.0.0Patch availableCNA
—@udecode/plate-link (npm)before 20.0.020.0.0Patch availableGHSA-4882-hxpr-hrvm
  • plate Vendorudecode Affected before 20.0.0 Fixed in 20.0.0 Patch available CNA
  • @udecode/plate-link (npm) Vendor— Affected before 20.0.0 Fixed in 20.0.0 Patch available GHSA-4882-hxpr-hrvm

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:udecode:plate:*:*:*:*:*:*:*:*before 20.0.0Vulnerableudecode
  • cpe:2.3:a:udecode:plate:*:*:*:*:*:*:*:* Versions before 20.0.0 Vulnerable ·udecode

Remediation

  • Fix · CNA plate (udecode) Fixed in 20.0.0
  • Fix · GHSA-4882-hxpr-hrvm @udecode/plate-link (npm) Fixed in 20.0.0 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-34245
  2. 2026-10-03 Alias added: GHSA-4882-hxpr-hrvm

References

Patch 1

Advisory 2

Other 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences