CVE-2026-8209

Path Traversal Exploit Causes Denial of Service in Gibbon

Published May 9, 2026 CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Path Traversal Exploit Causes Denial of Service in Gibbon
First Time appeared Gibbonedu
Gibbonedu gibbon
Vendors & Products Gibbonedu
Gibbonedu gibbon
Type Values Removed Values Added
Description 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.
Weaknesses CWE-23
References
Metrics cvssV4_0

{'score': 6.9, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
PRJBLK
Published
Updated
May 11, 2026, 5:45 PM
Reserved
May 9, 2026, 3:01 AM
Status
Deferred
Published
May 9, 2026, 4:16 AM
Modified
Jul 24, 2026, 8:10 AM