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CVE-2023-5243

Estado: ModificadaMedia (4.8)—

The Login Screen Manager WordPress plugin through 3.5.2 does not sanitize and escape some of its settings, which could allow high-privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).

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)

Login Screen Manager Project — Login Screen Manager

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2023-5243",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-5243",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-04-23T16:06:26.110459Z"
        }
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    ],
    "cvssMetricV31": [
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "LOW"
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          "userInteraction": "REQUIRED",
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        "exploitabilityScore": 1.7
      }
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  },
  "affected": [
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      "affectedData": [
        {
          "vendor": "Unknown",
          "product": "Login Screen Manager",
          "versions": [
            {
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              "version": "0",
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  "published": "2023-10-31T14:15:12.633",
  "references": [
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      ],
      "source": "contact@wpscan.com"
    },
    {
      "url": "https://wpscan.com/vulnerability/ad895200-a03a-4e92-b256-d6991547d38a",
      "tags": [
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        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
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      "lang": "en",
      "value": "The Login Screen Manager WordPress plugin through 3.5.2 does not sanitize and escape some of its settings, which could allow high-privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)."
    },
    {
      "lang": "es",
      "value": "El complemento Login Screen Manager de WordPress hasta la versión 3.5.2 no sanitiza ni escapa a algunas de sus configuraciones, lo que podría permitir a usuarios con altos privilegios, como el administrador, realizar ataques de Cross-Site Scripting almacenado incluso cuando la capacidad unfiltered_html no está permitida (por ejemplo, en configuración multisitio)."
    }
  ],
  "lastModified": "2026-06-17T06:48:09.780",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "vulnerable": true,
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              "versionEndIncluding": "3.5.2"
            }
          ],
          "operator": "OR"
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      ]
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  ],
  "sourceIdentifier": "contact@wpscan.com"
}