FKIE_CVE-2026-70590

Vulnerability from fkie_nvd - Published: 2026-08-04 22:17 - Updated: 2026-08-05 15:17
Severity
4.8 (Medium) - CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:H/A:N
Summary
Ghost is a Node.js content management system. Prior to 6.54.1, any staff-level user was able to leak the hashed passwords of other staff users through the Ghost Admin API. An offline password-guessing attack against the hashes could lead to account takeover if successful, but Device Verification should have prevented an attacker from logging in with a recovered password. Depending on the database used, leaked hashes may not have had the correct casing for all characters, increasing the difficulty of a password-guessing attack. This issue is fixed in version 6.54.1.
References
security-advisories@github.comhttps://github.com/TryGhost/Ghost/commit/63c31fad7e473caa62d8fbb4651a04a2a62b5d00
security-advisories@github.comhttps://github.com/TryGhost/Ghost/pull/29628
security-advisories@github.comhttps://github.com/TryGhost/Ghost/releases/tag/v6.54.1
security-advisories@github.comhttps://github.com/TryGhost/Ghost/security/advisories/GHSA-jm22-3w23-5q7w
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Ghost",
          "vendor": "TryGhost",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 6.54.1"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Ghost is a Node.js content management system. Prior to 6.54.1, any staff-level user was able to leak the hashed passwords of other staff users through the Ghost Admin API. An offline password-guessing attack against the hashes could lead to account takeover if successful, but Device Verification should have prevented an attacker from logging in with a recovered password. Depending on the database used, leaked hashes may not have had the correct casing for all characters, increasing the difficulty of a password-guessing attack. This issue is fixed in version 6.54.1."
    }
  ],
  "id": "CVE-2026-70590",
  "lastModified": "2026-08-05T15:17:14.750",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.8,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 0.5,
        "impactScore": 4.2,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-70590",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-05T14:01:58.330980Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-04T22:17:16.850",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/TryGhost/Ghost/commit/63c31fad7e473caa62d8fbb4651a04a2a62b5d00"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/TryGhost/Ghost/pull/29628"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/TryGhost/Ghost/releases/tag/v6.54.1"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/TryGhost/Ghost/security/advisories/GHSA-jm22-3w23-5q7w"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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