CVE-2026-19127

{
  "id": "CVE-2026-19127",
  "sourceIdentifier": "4cdc9741-f887-419a-a2fd-acbbd2729276",
  "published": "2026-08-06T22:16:55.557",
  "lastModified": "2026-10-23T21:10:00.157",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue in the billing and license activation subsystem allows remote attackers to bypass payment authorization workflows. By exploiting insufficient cryptographic validation or lack of server-side state verification on promotional/lifetime-deal (LTD) redemption codes, an unauthenticated attacker can forge valid redemption tokens or replay existing single-use codes to activate permanent, tier-highest paid subscriptions without a financial transaction."
    },
    {
      "lang": "es",
      "value": "Un problema en el subsistema de facturación y activación de licencias permite a atacantes remotos eludir los flujos de trabajo de autorización de pago. Al explotar una validación criptográfica insuficiente o la falta de verificación de estado del lado del servidor en códigos de canje promocionales/de oferta de por vida (LTD), un atacante no autenticado puede falsificar tokens de canje válidos o reutilizar códigos de un solo uso existentes para activar suscripciones pagas permanentes del nivel más alto sin una transacción financiera."
    }
  ],
  "affected": [
    {
      "source": "4cdc9741-f887-419a-a2fd-acbbd2729276",
      "affectedData": [
        {
          "vendor": "GitroomHQ",
          "product": "postiz-app",
          "defaultStatus": "unaffected",
          "packageName": "postiz-app",
          "versions": [
            {
              "version": "0",
              "lessThan": "2.21.10",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "4cdc9741-f887-419a-a2fd-acbbd2729276",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-08-07T14:02:58.803040Z",
          "id": "CVE-2026-19127",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "4cdc9741-f887-419a-a2fd-acbbd2729276",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-345"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://gadvisory.org/advisories/PSA-2026-NWZN9J",
      "source": "4cdc9741-f887-419a-a2fd-acbbd2729276"
    },
    {
      "url": "https://github.com/gitroomhq/postiz-app/commit/387d85dabe0223cd930714c19072a0aee58541ca",
      "source": "4cdc9741-f887-419a-a2fd-acbbd2729276"
    },
    {
      "url": "https://github.com/gitroomhq/postiz-app/releases/tag/v2.21.10",
      "source": "4cdc9741-f887-419a-a2fd-acbbd2729276"
    }
  ]
}