CVE-2026-48799

{
  "id": "CVE-2026-48799",
  "sourceIdentifier": "[email protected]",
  "published": "2026-07-15T17:16:48.667",
  "lastModified": "2026-10-24T21:10:00.130",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Postiz is an AI social media scheduling tool. Prior to 2.21.8, Postiz fails to verify Nowpayments IPN callback authenticity against the payment provider shared secret and reads the target subscription identifier from the untrusted request body, allowing a low-privileged account to grant arbitrary organizations lifetime PRO subscriptions without payment. This issue is fixed in version 2.21.8."
    },
    {
      "lang": "es",
      "value": "Postiz es una herramienta de programación de redes sociales con IA. Previo a la 2.21.8, Postiz no verifica la autenticidad de las devoluciones de llamada IPN de Nowpayments contra el secreto compartido del proveedor de pagos y lee el identificador de suscripción objetivo del cuerpo de la solicitud no confiable, permitiendo que una cuenta con pocos privilegios otorgue a organizaciones arbitrarias suscripciones PRO de por vida sin pago. Este problema está solucionado en la versión 2.21.8."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "gitroomhq",
          "product": "postiz-app",
          "versions": [
            {
              "version": "< 2.21.8",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N",
          "baseScore": 7.7,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 3.1,
        "impactScore": 4.0
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-07-15T18:01:37.750762Z",
          "id": "CVE-2026-48799",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-345"
        },
        {
          "lang": "en",
          "value": "CWE-639"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://gadvisory.org/advisories/PSA-2026-Q3TCPK",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/gitroomhq/postiz-app/commit/23696d2973510ae1f3f48bfa41a6bfbbf9827b05",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/gitroomhq/postiz-app/releases/tag/v2.21.8",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/gitroomhq/postiz-app/security/advisories/GHSA-j7rp-5mgj-qgg9",
      "source": "[email protected]"
    }
  ]
}