{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "53.0.0"
              },
              {
                "fixed": "53.1.4"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "7b9b204e1e38a20b1f8bec5a900d67c64afbc525"
            },
            {
              "fixed": "6214914ca811adf22d0ad503154494216eed68ba"
            },
            {
              "fixed": "c5b8e60148c5fbe4c8047cd5cf049127c6091314"
            }
          ],
          "repo": "https://github.com/udecode/plate",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-qj6x-xx2h-8hvv"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55596.json"
  },
  "details": "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.",
  "id": "CVE-2026-55596",
  "modified": "2026-08-12T03:51:37.794647281Z",
  "published": "2026-07-08T20:27:58.987Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/udecode/plate/releases/tag/v53.1.4"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55596.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/udecode/plate/security/advisories/GHSA-qj6x-xx2h-8hvv"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-55596"
    },
    {
      "type": "FIX",
      "url": "https://github.com/udecode/plate/commit/6214914ca811adf22d0ad503154494216eed68ba"
    },
    {
      "type": "FIX",
      "url": "https://github.com/udecode/plate/pull/5014"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Plate: Media embed provider metadata can bypass URL sanitization and execute iframe JavaScript"
}