{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "54.0.0-beta.0"
              },
              {
                "fixed": "54.0.0-beta.1"
              }
            ],
            "source": [
              "DESCRIPTION",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "d142cfb5b9358d97b3ec67448e7e00be41f067a4"
            },
            {
              "fixed": "118fa9be912d479e37d840f3300cf9dd6b6de0e3"
            },
            {
              "fixed": "d02afe45d5ec3a9fb95e0745bc5820ff18a3c12b"
            },
            {
              "fixed": "c6801761b10a81e54b8f2e91e5ecbd20414e2939"
            }
          ],
          "repo": "https://github.com/udecode/plate",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-qrfj-mgw8-j9c6"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/88xxx/CVE-2026-88976.json"
  },
  "details": "Plate is a rich-text editor with AI and shadcn/ui. Prior to 53.3.11, and in the discontinued 54.0.0-beta.0 through 54.0.0-beta.1 builds, Plate core HTML deserialization APIs parse supplied HTML strings in the active document. When an application passes untrusted or cross-user HTML to these APIs, certain HTML attributes can trigger browser behavior before the HTML is converted into editor nodes. This can allow attacker-controlled script to execute in the consuming application's origin when another user loads the deserialized content. This issue is fixed in version 53.3.11.",
  "id": "CVE-2026-88976",
  "modified": "2026-09-18T03:30:35.663379915Z",
  "published": "2026-09-16T14:11:39.881Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/udecode/plate/releases/tag/v53.3.11"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/88xxx/CVE-2026-88976.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/udecode/plate/security/advisories/GHSA-qrfj-mgw8-j9c6"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-88976"
    },
    {
      "type": "FIX",
      "url": "https://github.com/udecode/plate/commit/d02afe45d5ec3a9fb95e0745bc5820ff18a3c12b"
    },
    {
      "type": "FIX",
      "url": "https://github.com/udecode/plate/pull/5117"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "@platejs/core HTML deserialization can trigger browser behavior during parsing"
}