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CVE-2026-22241

7.2 · HIGH

The Open eClass platform (formerly known as GUnet eClass) is a complete course management system.

Published Jan 8, 2026CWE-434EPSS 3.26%

Overview

CVE-2026-22241 is a high-severity vulnerability. It was published on January 8, 2026 and has a CVSS 3.1 base score of 7.2 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.2, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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's file system. The main cause of the issue is that no validation or sanitization of the file's present inside the zip archive. This leads to remote code execution on the web server. Version 4.2 patches the issue.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/gunet/openeclass/commit/3f9d267b79812a4dd708bb1302339e6a5abe67d9GitHubgithub.com/gunet/openeclass/security/advisories/GHSA-gq72-7mwg-424rGitHubgithub.com/gunet/openeclass/security/advisories/GHSA-rf6j-xgqp-wjxgGitHubgithub.com/gunet/openeclass/security/advisories/GHSA-gq72-7mwg-424rReftwelvesec.com/2026/01/16/rce-via-arbitrary-file-upload-at-open-eclass/GitHubgithub.com/gunet/openeclass/security/advisories/GHSA-rf6j-xgqp-wjxg

How CyberStrike helps

Frequently asked questions

What is CVE-2026-22241?

CVE-2026-22241 is a high-severity vulnerability. It was published on January 8, 2026 and has a CVSS 3.1 base score of 7.2 (HIGH).

How severe is CVE-2026-22241?

This vulnerability has a CVSS 3.1 base score of 7.2, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-22241?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-22241?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-22241 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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