CVE-2026-105651 (GCVE-0-2026-105651)

Vulnerability from cvelistv5 – Published: 2026-10-05 19:09 – Updated: 2026-10-05 19:09
VLAI
Title
Ghost: Stored XSS via Bookmark Card Images
Summary
Ghost is a Node.js content management system. From 5.94.0 until 6.64.0, when creating a bookmark card, Ghost could store non-image files fetched from an external website as bookmark icons or thumbnails. This allowed any staff user, including Contributors, to host arbitrary HTML on the site's domain, possibly resulting in compromise of other staff users' admin sessions. This issue is fixed in version 6.64.0.
Severity
7.3 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Vendor Product Version CPE status
TryGhost Ghost Affected: >= 5.94.0, < 6.64.0
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
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      "affected": [
        {
          "product": "Ghost",
          "vendor": "TryGhost",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 5.94.0, \u003c 6.64.0"
            }
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          "value": "Ghost is a Node.js content management system. From 5.94.0 until 6.64.0, when creating a bookmark card, Ghost could store non-image files fetched from an external website as bookmark icons or thumbnails. This allowed any staff user, including Contributors, to host arbitrary HTML on the site\u0027s domain, possibly resulting in compromise of other staff users\u0027 admin sessions. This issue is fixed in version 6.64.0."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.3,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
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              "description": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-434",
              "description": "CWE-434: Unrestricted Upload of File with Dangerous Type",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-05T19:09:44.638Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/TryGhost/Ghost/security/advisories/GHSA-347q-26qq-h2p6",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/TryGhost/Ghost/security/advisories/GHSA-347q-26qq-h2p6"
        },
        {
          "name": "https://github.com/TryGhost/Ghost/issues/30761",
          "tags": [
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          "url": "https://github.com/TryGhost/Ghost/issues/30761"
        },
        {
          "name": "https://github.com/TryGhost/Ghost/commit/b41fe3f2c399cef058e6b487782a0b2263e86c03",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/TryGhost/Ghost/commit/b41fe3f2c399cef058e6b487782a0b2263e86c03"
        },
        {
          "name": "https://github.com/TryGhost/Ghost/releases/tag/v6.64.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/TryGhost/Ghost/releases/tag/v6.64.0"
        }
      ],
      "source": {
        "advisory": "GHSA-347q-26qq-h2p6",
        "discovery": "UNKNOWN"
      },
      "title": "Ghost: Stored XSS via Bookmark Card Images"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-105651",
    "datePublished": "2026-10-05T19:09:44.638Z",
    "dateReserved": "2026-10-05T16:40:39.613Z",
    "dateUpdated": "2026-10-05T19:09:44.638Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": {
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        "affected": [
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              {
                "product": "Ghost",
                "vendor": "TryGhost",
                "versions": [
                  {
                    "status": "affected",
                    "version": "\u003e= 5.94.0, \u003c 6.64.0"
                  }
                ]
              }
            ],
            "source": "security-advisories@github.com"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "Ghost is a Node.js content management system. From 5.94.0 until 6.64.0, when creating a bookmark card, Ghost could store non-image files fetched from an external website as bookmark icons or thumbnails. This allowed any staff user, including Contributors, to host arbitrary HTML on the site\u0027s domain, possibly resulting in compromise of other staff users\u0027 admin sessions. This issue is fixed in version 6.64.0."
          }
        ],
        "id": "CVE-2026-105651",
        "lastModified": "2026-10-05T20:17:14.010",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 7.3,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "REQUIRED",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N",
                "version": "3.1"
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              "impactScore": 5.2,
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              "type": "Secondary"
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        "references": [
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            "source": "security-advisories@github.com",
            "url": "https://github.com/TryGhost/Ghost/commit/b41fe3f2c399cef058e6b487782a0b2263e86c03"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/TryGhost/Ghost/issues/30761"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/TryGhost/Ghost/releases/tag/v6.64.0"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/TryGhost/Ghost/security/advisories/GHSA-347q-26qq-h2p6"
          }
        ],
        "sourceIdentifier": "security-advisories@github.com",
        "vulnStatus": "Received",
        "weaknesses": [
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            "description": [
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                "value": "CWE-79"
              },
              {
                "lang": "en",
                "value": "CWE-434"
              }
            ],
            "source": "security-advisories@github.com",
            "type": "Primary"
          }
        ]
      }
    }
  }
}



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