CVE-2026-22241
HIGHEPSS 86th pctlDescription
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.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Exploit Intelligence
Elevated risk: more likely to be exploited than 86% of all known CVEs.
References
- https://github.com/gunet/openeclass/commit/3f9d267b79812a4dd708bb1302339e6a5abe67d9
- https://github.com/gunet/openeclass/security/advisories/GHSA-gq72-7mwg-424r
- https://github.com/gunet/openeclass/security/advisories/GHSA-rf6j-xgqp-wjxg
- https://twelvesec.com/2026/01/16/rce-via-arbitrary-file-upload-at-open-eclass/
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Start freeThis product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-01-23.