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Vulnerabilities

Vulnerability · CVE-2026-22241

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

Published Jan 8, 2026 · catalog updated Jan 23, 2026 · The Open eClass platform

Last checked Nov 5, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-22241. EPSS is 3.26%. Act only if a listed version of The Open eClass platform is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (The Open eClass platform).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High7.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
3.26%
Remediation
Version ranges on file
Affected products
vendor gunet openeclass < 4.2

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor gunet openeclass < 4.2< 4.2

How to fix CVE-2026-22241

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-22241. EPSS is 3.26%. Act only if a listed version of The Open eClass platform is installed.

Which versions are affected?

Compare what you have installed with gunet openeclass < 4.2 < 4.2. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 3.26%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Jan 8, 2026 · EUVD

    Detected

    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 zi

  2. Jan 23, 2026 · EUVD

    Updated

    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 zi

Sources

  • CVE.orgVulnerability recordCVE-2026-22241

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-22241

    30-day exploitation probability 3.26%

    first.org
  • EUVDVulnerability recordEUVD-2026-1672

    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 ser

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Nov 5, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 5, 2026
  • CVE.orgOct 30, 2026
  • EUVDOct 30, 2026