CVE-2026-8209: CWE-23 Relative path traversal in gibbonedu gibbon
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.
AI Analysis
Technical Summary
CVE-2026-8209 is a relative path traversal vulnerability in the Gibbon web application prior to version 30.0.01. It allows authenticated users with Teacher or higher privileges to trigger a denial of service by attempting to extract PHP files via a .zip archive. If the extraction fails, the targeted file is deleted, causing disruption of the web application's availability. The vulnerability is classified under CWE-23 and has a CVSS 4.0 score of 6.9, reflecting a medium severity impact. No known exploits are reported in the wild, and no official patch or remediation level has been disclosed by the vendor.
Potential Impact
Successful exploitation results in denial of service through deletion of web application PHP files, causing loss of availability. The attack requires authenticated access with Teacher or higher privileges, limiting the scope to trusted users. There is no indication of confidentiality or integrity impact beyond availability loss.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict Teacher or higher privileges to trusted users only and monitor for suspicious activity related to file extraction attempts. Avoid uploading or extracting .zip archives containing PHP files if possible.
CVE-2026-8209: CWE-23 Relative path traversal in gibbonedu gibbon
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.
CVSS v4.0
Score 6.9medium
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-8209 is a relative path traversal vulnerability in the Gibbon web application prior to version 30.0.01. It allows authenticated users with Teacher or higher privileges to trigger a denial of service by attempting to extract PHP files via a .zip archive. If the extraction fails, the targeted file is deleted, causing disruption of the web application's availability. The vulnerability is classified under CWE-23 and has a CVSS 4.0 score of 6.9, reflecting a medium severity impact. No known exploits are reported in the wild, and no official patch or remediation level has been disclosed by the vendor.
Potential Impact
Successful exploitation results in denial of service through deletion of web application PHP files, causing loss of availability. The attack requires authenticated access with Teacher or higher privileges, limiting the scope to trusted users. There is no indication of confidentiality or integrity impact beyond availability loss.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict Teacher or higher privileges to trusted users only and monitor for suspicious activity related to file extraction attempts. Avoid uploading or extracting .zip archives containing PHP files if possible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- PRJBLK
- Date Reserved
- 2026-05-09T03:01:00.284Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69ffe1b2cbff5d8610ead45a
Added to database: 05/10/2026, 01:38:58 UTC
Last enriched: 05/17/2026, 10:43:09 UTC
Last updated: 06/30/2026, 20:51:29 UTC
Views: 95
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