Vulnerability Description
Plate is a rich-text editor with AI and shadcn/ui. From 53.0.0 until 53.1.4, the media embed renderer trusts serialized provider or sourceUrl metadata in useMediaState and skips parseMediaUrl protocol validation, allowing a crafted Plate document to set a known video provider while keeping url as a javascript: iframe source that the registry MediaEmbedElement renders directly as an iframe src when a victim opens the document. This issue is fixed in version 53.1.4.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/udecode/plate/commit/6214914ca811adf22d0ad503154494216eed68ba
- https://github.com/udecode/plate/pull/5014
- https://github.com/udecode/plate/releases/tag/v53.1.4
- https://github.com/udecode/plate/security/advisories/GHSA-qj6x-xx2h-8hvv
- https://github.com/udecode/plate/security/advisories/GHSA-qj6x-xx2h-8hvv
FAQ
What is CVE-2026-55596?
CVE-2026-55596 is a vulnerability with a CVSS score of 8.7 (HIGH). Plate is a rich-text editor with AI and shadcn/ui. From 53.0.0 until 53.1.4, the media embed renderer trusts serialized provider or sourceUrl metadata in useMediaState and skips parseMediaUrl protocol...
How severe is CVE-2026-55596?
CVE-2026-55596 has been rated HIGH with a CVSS base score of 8.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-55596?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.