CVE-2026-22241 Details
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.
A vulnerability allowing arbitrary file uploads has been identified in the Open eClass platform, prior to version 4.2. This issue arises from the theme import functionality, where an attacker with administrative privileges can upload files to the server's file system. The vulnerability is caused by a lack of validation and sanitization of files within zip archives, leading to remote code execution on the web server.
Users are advised to update to Open eClass version 4.2 or later, where this vulnerability has been patched.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jan 8, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/gunet/openeclass/security/advisories/GHSA-rf6j-xgqp-wjxg | CISA-ADP | ExploitThird Party Advisory |
| https://github.com/gunet/openeclass/security/advisories/GHSA-gq72-7mwg-424r | CVE | ExploitThird Party Advisory |
| https://twelvesec.com/2026/01/16/rce-via-arbitrary-file-upload-at-open-eclass/ | CVE | ExploitThird Party Advisory |
| https://github.com/gunet/openeclass/commit/3f9d267b79812a4dd708bb1302339e6a5abe67d9 | [email protected] | Patch |
| https://github.com/gunet/openeclass/security/advisories/GHSA-gq72-7mwg-424r | [email protected] | ExploitThird Party Advisory |
| https://github.com/gunet/openeclass/security/advisories/GHSA-rf6j-xgqp-wjxg | [email protected] | ExploitThird Party Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-434 | Unrestricted Upload of File with Dangerous Type | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| openeclass openeclass | < 4.1 |
CPE
Remediation
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Change History
7 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jan 23, 2026 | CVE Modified | [email protected] |
| Jan 22, 2026 | Initial Analysis | [email protected] |
| Jan 20, 2026 | CVE Modified | CVE |
| Jan 8, 2026 | CVE Modified | CISA-ADP |
| Jan 8, 2026 | New CVE Received | [email protected] |