PT-2026-39319 · Gibbon · Gibbon

Prjblk · Published 2026-05-09 · Updated 2026-05-11 · CVE-2026-8209

Positive Technologies (AI Summary)

CVSS v4.0

6.9

Medium

Base vector

AV:N/AC:H/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Name of the Vulnerable Software and Affected Versions Gibbon versions prior to v30.0.01

Description A path traversal issue allows users with Teacher or higher privileges to cause a denial of service (DOS). This occurs when attempting to extract web application PHP files; if the .zip extraction fails, the file is deleted, leading to a loss of availability for the web application.

Recommendations Update to version v30.0.01 or later.

Exploit

Fix

DoS

Relative Path Traversal

Weakness Enumeration

CWE-23

Related Identifiers

CVE-2026-8209

Affected Products

Gibbon

References · 6

• 🔥 https://projectblack.io/blog/gibbon-v30-authenticated-sql-injection-and-rce/#denial-of-service-via-path-traversal · Exploit
• https://github.com/GibbonEdu/core/releases/tag/v30.0.01 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-8209 · Security Note
• https://t.me/CVEtracker/53197 · Telegram Post
• https://twitter.com/CVEnew/status/2053131397993549975 · Twitter Post
• https://twitter.com/CVEarity/status/2053802407424081974 · Twitter Post