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CVE-2021-28931

Estado: ModificadaAlta (8.8)—

Arbitrary file upload vulnerability in Fork CMS 5.9.2 allows attackers to create or replace arbitrary files in the /themes directory via a crafted zip file uploaded to the Themes panel.

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)

Fork-cms — Fork CMS

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-28931",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
          "authentication": "SINGLE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
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        "userInteractionRequired": false
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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  "affected": [
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      "affectedData": [
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  "published": "2021-07-07T15:15:08.120",
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  "vulnStatus": "Modified",
  "weaknesses": [
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          "value": "CWE-434"
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Arbitrary file upload vulnerability in Fork CMS 5.9.2 allows attackers to create or replace arbitrary files in the /themes directory via a crafted zip file uploaded to the Themes panel."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de carga de archivos arbitrarios en Fork CMS versión 5.9.2, permite a atacantes crear o reemplazar archivos arbitrarios en el directorio /themes por medio de un archivo zip diseñado cargado en el panel Themes"
    }
  ],
  "lastModified": "2026-06-17T03:47:03.030",
  "configurations": [
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