FKIE_CVE-2026-22241

Vulnerability from fkie_nvd - Published: 2026-01-08 15:15 - Updated: 2026-06-17 10:19
Severity
7.2 (High) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Summary
The Open eClass platform (formerly known as GUnet eClass) is a complete course management system. Prior to version 4.2, an arbitrary file upload vulnerability in the theme import functionality enables an attacker with administrative privileges to upload arbitrary files on the server's file system. The main cause of the issue is that no validation or sanitization of the file's present inside the zip archive. This leads to remote code execution on the web server. Version 4.2 patches the issue.
References
security-advisories@github.comhttps://github.com/gunet/openeclass/commit/3f9d267b79812a4dd708bb1302339e6a5abe67d9Patch
security-advisories@github.comhttps://github.com/gunet/openeclass/security/advisories/GHSA-gq72-7mwg-424rExploit, Third Party Advisory
security-advisories@github.comhttps://github.com/gunet/openeclass/security/advisories/GHSA-rf6j-xgqp-wjxgExploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/gunet/openeclass/security/advisories/GHSA-gq72-7mwg-424rExploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://twelvesec.com/2026/01/16/rce-via-arbitrary-file-upload-at-open-eclass/Exploit, Third Party Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/gunet/openeclass/security/advisories/GHSA-rf6j-xgqp-wjxgExploit, Third Party Advisory
Impacted products
Vendor Product Version
openeclass openeclass *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "openeclass",
          "vendor": "gunet",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 4.2"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:openeclass:openeclass:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "85D1FE2D-D5FA-4B0D-B577-1F6A08EC6832",
              "versionEndExcluding": "4.1",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Open eClass platform (formerly known as GUnet eClass) is a complete course management system. Prior to version 4.2, an arbitrary file upload vulnerability in the theme import functionality enables an attacker with administrative privileges to upload arbitrary files on the server\u0027s file system. The main cause of the issue is that no validation or sanitization of the file\u0027s present inside the zip archive. This leads to remote code execution on the web server. Version 4.2 patches the issue."
    },
    {
      "lang": "es",
      "value": "La plataforma Open eClass (anteriormente conocida como GUnet eClass) es un sistema completo de gesti\u00f3n de cursos. Antes de la versi\u00f3n 4.2, una vulnerabilidad de carga de archivos arbitrarios en la funcionalidad de importaci\u00f3n de temas permite a un atacante con privilegios administrativos cargar archivos arbitrarios en el sistema de archivos del servidor. La causa principal del problema es que no hay validaci\u00f3n ni saneamiento de los archivos presentes dentro del archivo zip. Esto lleva a la ejecuci\u00f3n remota de c\u00f3digo en el servidor web. La versi\u00f3n 4.2 corrige el problema."
    }
  ],
  "id": "CVE-2026-22241",
  "lastModified": "2026-06-17T10:19:37.103",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.2,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.2,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 7.3,
          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "PROOF_OF_CONCEPT",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "HIGH",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "HIGH",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-22241",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-01-08T15:50:32.703426Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-01-08T15:15:45.720",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/gunet/openeclass/commit/3f9d267b79812a4dd708bb1302339e6a5abe67d9"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://github.com/gunet/openeclass/security/advisories/GHSA-gq72-7mwg-424r"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://github.com/gunet/openeclass/security/advisories/GHSA-rf6j-xgqp-wjxg"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://github.com/gunet/openeclass/security/advisories/GHSA-gq72-7mwg-424r"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://twelvesec.com/2026/01/16/rce-via-arbitrary-file-upload-at-open-eclass/"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://github.com/gunet/openeclass/security/advisories/GHSA-rf6j-xgqp-wjxg"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-434"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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