CVE-2026-8209 (GCVE-0-2026-8209)

Vulnerability from cvelistv5 – Published: 2026-05-09 03:19 – Updated: 2026-05-09 03:19
VLAI?
Summary
Gibbon versions before v30.0.01 are affected by a path traversal vulnerability resulting in DOS by attempting extraction of web application PHP files, failed .zip extraction results in deletion of the file and a DOS condition. Successful exploitation requires Teacher or higher privileges. Exploitation could result in loss of availability of the web application.
CWE
  • CWE-23 - Relative path traversal
Assigner
Impacted products
Vendor Product Version
gibbonedu gibbon Affected: 0 , < 30.0.01 (custom)
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Show details on NVD website

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            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
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            "attackVector": "NETWORK",
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            "baseSeverity": "MEDIUM",
            "exploitMaturity": "NOT_DEFINED",
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            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H",
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          "tags": [
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          "url": "https://github.com/GibbonEdu/core/releases/tag/v30.0.01"
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          "url": "https://projectblack.io/blog/gibbon-v30-authenticated-sql-injection-and-rce/#denial-of-service-via-path-traversal"
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      "source": {
        "discovery": "UNKNOWN"
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    "datePublished": "2026-05-09T03:19:27.757Z",
    "dateReserved": "2026-05-09T03:01:00.284Z",
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    "state": "PUBLISHED"
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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

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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Detection rules are retrieved from Rulezet.

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