CVE-2009-4816

Status: ModifiedMedium (5)—💥 Exploit

Directory traversal vulnerability in api/download_checker.php in MegaLab The Uploader 2.0 allows remote attackers to read arbitrary files via a .. (dot dot) in the filename parameter.

CVSS

Version: 2.0
Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N
Base score: 5

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 2.72%
Percentile among all scored CVEs: 86
Score date: 10/7/2026

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).

💥 Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.

Published on Exploit-DB · The Uploader 2.0 - File Disclosure (12/22/2009)

Affected technologies (1)

Andy Stedemos — THE Uploader

CWEs

CWE-22

References

Raw JSON (NVD)

Show

{
  "id": "CVE-2009-4816",
  "cveTags": [],
  "metrics": {
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        "source": "nvd@nist.gov",
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          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
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        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
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  },
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  "published": "2010-04-27T15:30:00.733",
  "references": [
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      "url": "http://osvdb.org/61270",
      "source": "cve@mitre.org"
    },
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      "tags": [
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
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          "value": "CWE-22"
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Directory traversal vulnerability in api/download_checker.php in MegaLab The Uploader 2.0 allows remote attackers to read arbitrary files via a .. (dot dot) in the filename parameter."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de salto de directorio en api/download_checker.php en MegaLab The Uploader 2.0 permite a atacantes remotos leer ficheros de su elección mediante un .. (punto punto) en el parámetro \"filename\"."
    }
  ],
  "lastModified": "2026-06-16T23:14:24.800",
  "configurations": [
    {
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          "cpeMatch": [
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  "sourceIdentifier": "cve@mitre.org"
}