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.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 1
- First seenCVSS 8.7NVD modified 2026-10-25 17:10
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 5
- 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