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CVE-2021-24977

Estado: AnalizadaMedia (6.1)—

The Use Any Font | Custom Font Uploader WordPress plugin before 6.2.1 does not have any authorisation checks when assigning a font, allowing unauthenticated users to sent arbitrary CSS which will then be processed by the frontend for all users. Due to the lack of sanitisation and escaping in the backend, it could also lead to Stored XSS issues

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)

Dineshkarki — USE ANY Font

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-24977",
  "cveTags": [],
  "metrics": {
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      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "baseScore": 5.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
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        "impactScore": 4.9,
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        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
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          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
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        "impactScore": 2.7,
        "exploitabilityScore": 2.8
      }
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  "affected": [
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      "affectedData": [
        {
          "vendor": "Unknown",
          "product": "Use Any Font | Custom Font Uploader",
          "versions": [
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              "version": "6.2.1",
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  "published": "2022-02-28T09:15:08.337",
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      "source": "contact@wpscan.com",
      "description": [
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          "value": "CWE-862"
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    {
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      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-862"
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      ]
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  ],
  "descriptions": [
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      "lang": "en",
      "value": "The Use Any Font | Custom Font Uploader WordPress plugin before 6.2.1 does not have any authorisation checks when assigning a font, allowing unauthenticated users to sent arbitrary CSS which will then be processed by the frontend for all users. Due to the lack of sanitisation and escaping in the backend, it could also lead to Stored XSS issues"
    },
    {
      "lang": "es",
      "value": "El plugin Use Any Font | Custom Font Uploader de WordPress versiones anteriores a 6.2.1, no presenta ninguna comprobación de autorización cuando se asigna una fuente, permitiendo a usuarios no autenticados enviar CSS arbitrarios que luego serán procesados por el frontend para todos los usuarios. Debido a una falta de saneo y escape en el backend, también podría conllevar a problemas de tipo XSS Almacenado."
    }
  ],
  "lastModified": "2026-06-17T03:41:15.133",
  "configurations": [
    {
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              "versionEndExcluding": "6.2.1"
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  "sourceIdentifier": "contact@wpscan.com"
}