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CVE-2023-4779

Estado: ModificadaMedia (5.4)—

The User Submitted Posts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's [usp_gallery] shortcode in versions up to, and including, 20230811 due to insufficient input sanitization and output escaping on user supplied attributes like 'before'. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Plugin-planet — User Submitted Posts

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2023-4779",
  "cveTags": [],
  "metrics": {
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        "ssvcData": {
          "id": "CVE-2023-4779",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-02-05T18:27:06.581631Z"
        }
      }
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    "cvssMetricV31": [
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        "source": "security@wordfence.com",
        "cvssData": {
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "LOW"
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        "source": "nvd@nist.gov",
        "cvssData": {
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
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  "published": "2023-09-06T07:15:09.690",
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    },
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      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/d21ca709-183f-4dd1-849c-f1b2a4f7ec43?source=cve",
      "tags": [
        "Third Party Advisory"
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      "tags": [
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Secondary",
      "source": "security@wordfence.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The User Submitted Posts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's [usp_gallery] shortcode in versions up to, and including, 20230811 due to insufficient input sanitization and output escaping on user supplied attributes like 'before'. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page."
    },
    {
      "lang": "es",
      "value": "El plugin User Submitted Posts para WordPress es vulnerable a Cross-Site Scripting (XSS) almacenado a través del shortcode del plugin [usp_gallery] en versiones hasta, e incluyendo, la 20230811 debido a una insuficiente sanitización de entrada y escape de salida en atributos suministrados por el usuario como \"before\". Esto hace posible que atacantes autenticados con permisos de nivel de colaborador y superiores inyecten scripts web arbitrarios en páginas que se ejecutarán cada vez que un usuario acceda a una página inyectada. "
    }
  ],
  "lastModified": "2026-06-17T06:38:34.990",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
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              "criteria": "cpe:2.3:a:plugin-planet:user_submitted_posts:*:*:*:*:*:wordpress:*:*",
              "vulnerable": true,
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              "versionEndIncluding": "20230811"
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          "operator": "OR"
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  "sourceIdentifier": "security@wordfence.com"
}