CVE-2026-22241

Severity CVSS v4.0:

HIGH

Type:

CWE-434 Unrestricted Upload of File with Dangerous Type

Publication date:

08/01/2026

Last modified:

08/01/2026

Description

The Open eClass platform (formerly known as GUnet eClass) is a complete course management system. Prior to version 4.2, an arbitrary file upload vulnerability in the theme import functionality enables an attacker with administrative privileges to upload arbitrary files on the server&#39;s file system. The main cause of the issue is that no validation or sanitization of the file&#39;s present inside the zip archive. This leads to remote code execution on the web server. Version 4.2 patches the issue.

Impact

Vector 4.0

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P CVSS v4.0 Severity and Metrics:

Base Score: 7.30 HIGH
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Attack Requirements (AT): None
Privileges Required (PR): High
User Interaction (UI): None
Confidentiality (VC): High
Integrity (VI): High
Availability (VA): High
Confidentiality (SC): None
Integrity (SI): None
Availability (SA): None
Exploit Maturity (E): POC

Base Score 4.0

7.30

Severity 4.0

HIGH

CVE-2026-22241

Description

Impact

References to Advisories, Solutions, and Tools