Authenticated DatoCMS Web Previews Plugin Iframe Injection

{
  "id": "4f733dea7b095895af149891d8c0be20cedfb5b6d2f6ee19f8c038ea868c89f2",
  "url": "https://osv.dev/vulnerability/CVE-2026-3327",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Authenticated DatoCMS Web Previews Plugin Iframe Injection",
    "summary": "Authenticated Iframe Injection in Dato CMS Web Previews plugin. This vulnerability permits a malicious authenticated user to circumvent the restriction enforced on the configured frontend URL, enabling the loading of arbitrary external resources or origins. This issue affects Web Previews < v1.0.31.",
    "evidence": "osv:CVE-2026-3327",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-3327",
      "aliases": [
        "CVE-2026-3327"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/datocms/plugins",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "7965eebf0973cc5ebb18bc5ff9ce7ff19e89bb2e"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "fixed": "7965eebf0973cc5ebb18bc5ff9ce7ff19e89bb2e"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.1.0",
            "v0.0.3",
            "v0.0.2"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-3327.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:29.700274316Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/3xxx/CVE-2026-3327.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-3327",
        "https://github.com/datocms/plugins/commit/7965eebf0973cc5ebb18bc5ff9ce7ff19e89bb2e"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-79"
        ],
        "cna_assigner": "Intigriti",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "1.0.31"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StringRangeExpression"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/3xxx/CVE-2026-3327.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-3327",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 496674,
  "published_at": "2026-02-27T14:09:38.15+00:00"
}