{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "zulip",
          "vendor": "zulip",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c bf28c82dc9b1f630fa8e9106358771b20a0040f7"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Zulip is an open-source team collaboration tool. Prior to commit bf28c82dc9b1f630fa8e9106358771b20a0040f7, the API endpoint for creating a card update session during an upgrade flow was accessible to users with only organization member privileges. When the associated Stripe Checkout session is completed, the Stripe webhook updates the organization\u2019s default payment method. Because no billing-specific authorization check is enforced, a regular (non-billing) member can change the organization\u2019s payment method. This vulnerability affected the Zulip Cloud payment processing system, and has been patched as of commit bf28c82dc9b1f630fa8e9106358771b20a0040f7. Self-hosted deploys are no longer affected and no patch or upgrade is required for them."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "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:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-863",
              "description": "CWE-863: Incorrect Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-26T21:44:34.398Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/zulip/zulip/security/advisories/GHSA-vhhx-84f7-rc8j",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/zulip/zulip/security/advisories/GHSA-vhhx-84f7-rc8j"
        },
        {
          "name": "https://github.com/zulip/zulip/commit/bf28c82dc9b1f630fa8e9106358771b20a0040f7",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/zulip/zulip/commit/bf28c82dc9b1f630fa8e9106358771b20a0040f7"
        }
      ],
      "source": {
        "advisory": "GHSA-vhhx-84f7-rc8j",
        "discovery": "UNKNOWN"
      },
      "title": "Zulip Vulnerable to Modification of Payment Method (Stripe Default Card) by Non-Billing Users"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-25741",
    "datePublished": "2026-02-26T21:44:34.398Z",
    "dateReserved": "2026-02-05T16:48:00.428Z",
    "dateUpdated": "2026-02-26T21:44:34.398Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-25741\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-02-26T22:20:46.170\",\"lastModified\":\"2026-02-27T14:06:37.987\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Zulip is an open-source team collaboration tool. Prior to commit bf28c82dc9b1f630fa8e9106358771b20a0040f7, the API endpoint for creating a card update session during an upgrade flow was accessible to users with only organization member privileges. When the associated Stripe Checkout session is completed, the Stripe webhook updates the organization\u2019s default payment method. Because no billing-specific authorization check is enforced, a regular (non-billing) member can change the organization\u2019s payment method. This vulnerability affected the Zulip Cloud payment processing system, and has been patched as of commit bf28c82dc9b1f630fa8e9106358771b20a0040f7. Self-hosted deploys are no longer affected and no patch or upgrade is required for them.\"},{\"lang\":\"es\",\"value\":\"Zulip es una herramienta de colaboraci\u00f3n en equipo de c\u00f3digo abierto. Antes del commit bf28c82dc9b1f630fa8e9106358771b20a0040f7, el endpoint de la API para crear una sesi\u00f3n de actualizaci\u00f3n de tarjeta durante un flujo de actualizaci\u00f3n era accesible para usuarios con solo privilegios de miembro de la organizaci\u00f3n. Cuando la sesi\u00f3n de Stripe Checkout asociada se completa, el webhook de Stripe actualiza el m\u00e9todo de pago predeterminado de la organizaci\u00f3n. Debido a que no se aplica una verificaci\u00f3n de autorizaci\u00f3n espec\u00edfica de facturaci\u00f3n, un miembro regular (no de facturaci\u00f3n) puede cambiar el m\u00e9todo de pago de la organizaci\u00f3n. Esta vulnerabilidad afect\u00f3 al sistema de procesamiento de pagos de Zulip Cloud, y ha sido parcheada a partir del commit bf28c82dc9b1f630fa8e9106358771b20a0040f7. Las implementaciones autoalojadas ya no se ven afectadas y no se requiere ning\u00fan parche o actualizaci\u00f3n para ellas.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"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:L\",\"baseScore\":7.1,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":2.8,\"impactScore\":4.2}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-863\"}]}],\"references\":[{\"url\":\"https://github.com/zulip/zulip/commit/bf28c82dc9b1f630fa8e9106358771b20a0040f7\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/zulip/zulip/security/advisories/GHSA-vhhx-84f7-rc8j\",\"source\":\"security-advisories@github.com\"}]}}"
  }
}