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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"
    }
  ]
}