CVE-2026-55596
Full vulnerability record from the local CVENow database.
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.
Severity
HIGH
CVSS score
8.7
(v3.1)
Vulnerability status
Deferred
Source identifier
Published
2026-07-08 21:16:50.247000
Last modified
2026-10-25 17:10:00.197000
View original CVE JSON
{
"id": "CVE-2026-55596",
"sourceIdentifier": "[email protected]",
"published": "2026-07-08T21:16:50.247",
"lastModified": "2026-10-25T17:10:00.197",
"vulnStatus": "Deferred",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "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."
},
{
"lang": "es",
"value": "Plate es un editor de texto enriquecido con IA y shadcn/ui. Desde la versión 53.0.0 hasta la 53.1.4, el renderizador de incrustación de medios confía en los metadatos serializados de provider o sourceUrl en useMediaState y omite la validación del protocolo parseMediaUrl, permitiendo que un documento Plate manipulado establezca un proveedor de video conocido mientras mantiene la URL como una fuente de iframe javascript_disabled: que el MediaEmbedElement del registro renderiza directamente como un iframe src cuando una víctima abre el documento. Este problema se ha solucionado en la versión 53.1.4."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "udecode",
"product": "plate",
"versions": [
{
"version": ">= 53.0.0, < 53.1.4",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N",
"baseScore": 8.7,
"baseSeverity": "HIGH",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "REQUIRED",
"scope": "CHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"availabilityImpact": "NONE"
},
"exploitabilityScore": 2.3,
"impactScore": 5.8
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-07-09T13:40:39.729677Z",
"id": "CVE-2026-55596",
"options": [
{
"exploitation": "poc"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-79"
}
]
}
],
"references": [
{
"url": "https://github.com/udecode/plate/commit/6214914ca811adf22d0ad503154494216eed68ba",
"source": "[email protected]"
},
{
"url": "https://github.com/udecode/plate/pull/5014",
"source": "[email protected]"
},
{
"url": "https://github.com/udecode/plate/releases/tag/v53.1.4",
"source": "[email protected]"
},
{
"url": "https://github.com/udecode/plate/security/advisories/GHSA-qj6x-xx2h-8hvv",
"source": "[email protected]"
},
{
"url": "https://github.com/udecode/plate/security/advisories/GHSA-qj6x-xx2h-8hvv",
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
}
]
}