Local File Inclusion Vulnerability in Gibbon by GibbonEdu
CVE-2026-8208

8.9HIGH

Key Information:

Vendor

Gibbonedu

Status
Gibbon
Vendor
CVE Published:
9 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-8208?

Gibbon is affected by a local file inclusion issue that permits remote code execution (RCE). This vulnerability allows users with Teacher privileges or higher to manipulate the report archive directory, leading to the execution of a user-supplied .zip file as PHP code. Exploiting this flaw may result in a complete compromise of the web server hosting the Gibbon application, making it critical for users to upgrade to version 30.0.01 or later.

Affected Version(s)

gibbon 0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-8208 - Proof of Concept

References

https://projectblack.io/blog/gibbon-v30-authenticated-sql...
exploit
https://github.com/GibbonEdu/core/releases/tag/v30.0.01
vendor-advisory

CVSS V4

Score:
8.9
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.