CVE-2026-55596
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.43%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 8.7 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
- EPSS
- 0.43% probability · 36th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Source
- security-advisories@github.com
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.