CVE-2026-34748

{
  "id": "CVE-2026-34748",
  "sourceIdentifier": "[email protected]",
  "published": "2026-04-01T20:16:27.040",
  "lastModified": "2026-10-26T21:10:00.170",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Payload is a free and open source headless content management system. Prior to version 3.78.0 in @payloadcms/next, a stored Cross-Site Scripting (XSS) vulnerability existed in the admin panel. An authenticated user with write access to a collection could save content that, when viewed by another user, would execute in their browser. This issue has been patched in version 3.78.0."
    },
    {
      "lang": "es",
      "value": "Payload es un sistema de gestión de contenido headless de código abierto y gratuito. Antes de la versión 3.78.0 en @payloadcms/next, existía una vulnerabilidad de cross-site scripting (XSS) almacenado en el panel de administración. Un usuario autenticado con acceso de escritura a una colección podía guardar contenido que, cuando era visto por otro usuario, se ejecutaría en su navegador. Este problema ha sido parcheado en la versión 3.78.0."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "payloadcms",
          "product": "payload",
          "versions": [
            {
              "version": "< 3.78.0",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N",
          "baseScore": 8.7,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "REQUIRED",
          "scope": "CHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 5.8
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-04-02T15:49:07.409157Z",
          "id": "CVE-2026-34748",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:payloadcms:payload:*:*:*:*:*:node.js:*:*",
              "versionEndExcluding": "3.78.0",
              "matchCriteriaId": "225E9788-C205-479C-B3EE-7A57A468929F"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/payloadcms/payload/security/advisories/GHSA-mmxc-95ch-2j7c",
      "source": "[email protected]",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
      ]
    }
  ]
}