CVE-2026-22241
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.31%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 4.0
- 7.3 HIGHCVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 3.31% probability · 88th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-434
- Affected
- openeclass/openeclass
- Source
- security-advisories@github.com
References
- https://github.com/gunet/openeclass/commit/3f9d267b79812a4dd708bb1302339e6a5abe67d9Patch
- https://github.com/gunet/openeclass/security/advisories/GHSA-gq72-7mwg-424rExploit, Third Party Advisory
- https://github.com/gunet/openeclass/security/advisories/GHSA-rf6j-xgqp-wjxgExploit, Third Party Advisory
- https://github.com/gunet/openeclass/security/advisories/GHSA-gq72-7mwg-424rExploit, Third Party Advisory
- https://twelvesec.com/2026/01/16/rce-via-arbitrary-file-upload-at-open-eclass/Exploit, Third Party Advisory
- https://github.com/gunet/openeclass/security/advisories/GHSA-rf6j-xgqp-wjxgExploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.