CVE-2026-61900 (GCVE-0-2026-61900)

Vulnerability from cvelistv5 – Published: 2026-07-20 18:34 – Updated: 2026-07-20 18:34
VLAI
Title
Joomla Extension - dj-extensions.com - Unauthenticated arbitrary file upload in DJ-jDownloads < 4.1.6
Summary
The Joomla extension JDownloads is vulnerable to an unauthenticated file upload, leading to full RCE.
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Credits
Andrés Restrepo
Show details on NVD website

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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "jDownloads extension for Joomla",
          "vendor": "dj-extensions.com",
          "versions": [
            {
              "status": "affected",
              "version": "4.1.0-4.1.5"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Andr\u00e9s Restrepo"
        }
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            {
              "lang": "en",
              "value": "CAPEC-242: Code Injection"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
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            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 10,
            "baseSeverity": "CRITICAL",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "HIGH",
            "subConfidentialityImpact": "HIGH",
            "subIntegrityImpact": "HIGH",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
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          "scenarios": [
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              "value": "GENERAL"
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      "problemTypes": [
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            {
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              "description": "CWE-434 Unrestricted Upload of File with Dangerous Type",
              "lang": "en",
              "type": "CWE"
            }
          ]
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-20T18:34:32.512Z",
        "orgId": "6ff30186-7fb7-4ad9-be33-533e7b05e586",
        "shortName": "Joomla"
      },
      "references": [
        {
          "tags": [
            "product"
          ],
          "url": "https://www.jdownloads.com/"
        },
        {
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://mysites.guru/blog/jdownloads-4-1-unauthenticated-upload-flaw/"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Joomla Extension - dj-extensions.com - Unauthenticated arbitrary file upload in DJ-jDownloads \u003c 4.1.6",
      "x_generator": {
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  },
  "cveMetadata": {
    "assignerOrgId": "6ff30186-7fb7-4ad9-be33-533e7b05e586",
    "assignerShortName": "Joomla",
    "cveId": "CVE-2026-61900",
    "datePublished": "2026-07-20T18:34:32.512Z",
    "dateReserved": "2026-07-12T05:35:55.728Z",
    "dateUpdated": "2026-07-20T18:34:32.512Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-61900",
      "date": "2026-07-21",
      "epss": "0.00263",
      "percentile": "0.1786"
    },
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  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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