High severity8.7NVD Advisory· Published Jul 8, 2026· Updated Jul 10, 2026
CVE-2026-55596
CVE-2026-55596
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.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
@platejs/medianpm | >= 53.0.0, < 53.1.4 | 53.1.4 |
Affected products
1Patches
Vulnerability mechanics
References
6- github.com/advisories/GHSA-qj6x-xx2h-8hvvghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-55596ghsaADVISORY
- github.com/udecode/plate/commit/6214914ca811adf22d0ad503154494216eed68banvdWEB
- github.com/udecode/plate/pull/5014nvdWEB
- github.com/udecode/plate/releases/tag/v53.1.4nvdWEB
- github.com/udecode/plate/security/advisories/GHSA-qj6x-xx2h-8hvvnvdWEB
News mentions
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