CVE-2026-22241

HIGH EPSS 86.0%
Published Jan 8, 20265mo ago · Modified Jun 17, 20262w ago
7.3 CVSS 4.0
High
Find Similar
Published Jan 8, 2026 5mo ago
Last Modified Jun 17, 2026 2w ago

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 Details

Base Score
7.3
Exploitability
—
Impact
—
Vector string
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required High
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
86.0% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-434 Unrestricted Upload of File with Dangerous Type Resource Mgmt

Affected Products 1

VendorProductVersionRange
openeclassopeneclass* <4.1

References 4

  • github.com https://github.com/gunet/openeclass/commit/3f9d267b79812a4dd708bb1302339e6a5abe67d9
    Patch
  • github.com https://github.com/gunet/openeclass/security/advisories/GHSA-gq72-7mwg-424r
    ExploitThird Party Advisory
  • github.com https://github.com/gunet/openeclass/security/advisories/GHSA-rf6j-xgqp-wjxg
    ExploitThird Party Advisory
  • twelvesec.com https://twelvesec.com/2026/01/16/rce-via-arbitrary-file-upload-at-open-eclass/
    ExploitThird Party Advisory

Remediation

  • github.com https://github.com/gunet/openeclass/commit/3f9d267b79812a4dd708bb1302339e6a5abe67d9
    Patch