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CVE-2020-15431

Status: ModifiedCritical (9.8)—

This vulnerability allows remote attackers to execute arbitrary code on affected installations of CentOS Web Panel cwp-e17.0.9.8.923. Authentication is not required to exploit this vulnerability. The specific flaw exists within ajax_crons.php. When parsing the user parameter, the process does not properly validate a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-9740.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2020-15431",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 10,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
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    "cvssMetricV30": [
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        "type": "Secondary",
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          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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    "cvssMetricV31": [
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          "confidentialityImpact": "HIGH"
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  "affected": [
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      "affectedData": [
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          "vendor": "CentOS Web Panel",
          "product": "CentOS Web Panel",
          "versions": [
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              "version": "cwp-e17.0.9.8.923"
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  ],
  "published": "2020-07-28T17:15:13.490",
  "references": [
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      "url": "https://www.zerodayinitiative.com/advisories/ZDI-20-748/",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "zdi-disclosures@trendmicro.com"
    },
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      "url": "https://www.zerodayinitiative.com/advisories/ZDI-20-748/",
      "tags": [
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        "VDB Entry"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Secondary",
      "source": "zdi-disclosures@trendmicro.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
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      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "This vulnerability allows remote attackers to execute arbitrary code on affected installations of CentOS Web Panel cwp-e17.0.9.8.923. Authentication is not required to exploit this vulnerability. The specific flaw exists within ajax_crons.php. When parsing the user parameter, the process does not properly validate a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-9740."
    },
    {
      "lang": "es",
      "value": "Esta vulnerabilidad permite a atacantes remotos ejecutar código arbitrario en las instalaciones afectadas de CentOS Web Panel versión cwp-e17.0.9.8.923. No es requerida una autenticación para explotar esta vulnerabilidad. El fallo específico se presenta dentro del archivo ajax_crons.php. Cuando se analiza el parámetro user, el proceso no comprueba apropiadamente una cadena suministrada por el usuario antes de usarla para ejecutar una llamada del sistema. Un atacante puede aprovechar esta vulnerabilidad para ejecutar código en el contexto de root. Fue ZDI-CAN-9740"
    }
  ],
  "lastModified": "2026-06-17T02:56:40.140",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "criteria": "cpe:2.3:a:control-webpanel:webpanel:0.9.8.923:*:*:*:*:*:*:*",
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  "sourceIdentifier": "zdi-disclosures@trendmicro.com"
}