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FKIE_CVE-2026-47127

Vulnerability from fkie_nvd - Published: 2026-08-07 23:17 - Updated: 2026-08-13 18:17
Severity
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Summary
Ghostfolio is an open source wealth management software. Prior to version 3.4.0, Ghostfolio's Stripe checkout success-URL handler at `GET /api/v1/subscription/stripe/callback?checkoutSessionId=<id>` retrieves the Stripe Checkout Session by ID and unconditionally grants a Premium subscription to the session's `client_reference_id` — without ever checking `session.payment_status` or `session.status`. There is no separate Stripe webhook endpoint with `stripe-signature` verification; this callback is the sole code path that creates Stripe-driven subscriptions. Any authenticated user can self-grant a 1-year Premium subscription without ever paying. Version 3.4.0 rejects sessions unless `session.payment_status === 'paid'` AND `session.status === 'complete'` (fails closed). Additionally, new unique `stripeCheckoutSessionId` column → a session can't be redeemed twice (race-safe via DB unique constraint).
References
security-advisories@github.comhttps://github.com/ghostfolio/ghostfolio/pull/6872
security-advisories@github.comhttps://github.com/ghostfolio/ghostfolio/security/advisories/GHSA-j465-x2w3-wjj8
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/ghostfolio/ghostfolio/security/advisories/GHSA-j465-x2w3-wjj8
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "ghostfolio",
          "vendor": "ghostfolio",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.4.0"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Ghostfolio is an open source wealth management software. Prior to version 3.4.0, Ghostfolio\u0027s Stripe checkout success-URL handler at `GET /api/v1/subscription/stripe/callback?checkoutSessionId=\u003cid\u003e` retrieves the Stripe Checkout Session by ID and unconditionally grants a Premium subscription to the session\u0027s `client_reference_id` \u2014 without ever checking `session.payment_status` or `session.status`. There is no separate Stripe webhook endpoint with `stripe-signature` verification; this callback is the sole code path that creates Stripe-driven subscriptions. Any authenticated user can self-grant a 1-year Premium subscription without ever paying. Version 3.4.0 rejects sessions unless `session.payment_status === \u0027paid\u0027` AND `session.status === \u0027complete\u0027` (fails closed). Additionally, new unique `stripeCheckoutSessionId` column \u2192 a session can\u0027t be redeemed twice (race-safe via DB unique constraint)."
    }
  ],
  "id": "CVE-2026-47127",
  "lastModified": "2026-08-13T18:17:27.747",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-47127",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-13T17:47:37.225360Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-07T23:17:03.400",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/ghostfolio/ghostfolio/pull/6872"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/ghostfolio/ghostfolio/security/advisories/GHSA-j465-x2w3-wjj8"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/ghostfolio/ghostfolio/security/advisories/GHSA-j465-x2w3-wjj8"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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