How severe is CVE-2026-24673?

CVE-2026-24673 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2026-24673 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-24673?

CVE-2026-24673 affects Gunet Open Eclass Platform. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-24673?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-24673 have an EU (EUVD) identifier?

Yes. CVE-2026-24673 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5235.

When was CVE-2026-24673 published?

CVE-2026-24673 was published on 2026-02-03 and last updated on 2026-06-17.

CVE-2026-24673

CVE-2026-24673 is a medium-severity vulnerability in Gunet Open Eclass Platform with a CVSS 3.x base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-434.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-5235
Weakness: CWE-434
Affected product: Gunet Open Eclass Platform
Published: 2026-02-03
Last modified: 2026-06-17

Description

The Open eClass platform (formerly known as GUnet eClass) is a complete course management system. Prior to version 4.2, a file upload validation bypass vulnerability allows attackers to upload files with prohibited extensions by embedding them inside ZIP archives and extracting them using the application’s built-in decompression functionality. This issue has been patched in version 4.2.

Frequently asked questions

What is CVE-2026-24673?: The Open eClass platform (formerly known as GUnet eClass) is a complete course management system. Prior to version 4.2, a file upload validation bypass vulnerability allows attackers to upload files with prohibited extensions by embedding them inside ZIP archives and extracting them using the application’s built-in decompression functionality. This issue has been patched in version 4.2.
How severe is CVE-2026-24673?: CVE-2026-24673 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2026-24673 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-24673?: CVE-2026-24673 affects Gunet Open Eclass Platform. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-24673?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-24673 have an EU (EUVD) identifier?: Yes. CVE-2026-24673 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5235.
When was CVE-2026-24673 published?: CVE-2026-24673 was published on 2026-02-03 and last updated on 2026-06-17.

References

https://github.com/gunet/openeclass/security/advisories/GHSA-3g4j-56gp-v6wv

Affected products (1)

cpe:2.3:a:gunet:open_eclass_platform:*:*:*:*:*:*:*:*

More vulnerabilities in Gunet Open Eclass Platform

CVE-2020-37116 — High (CVSS 8.8): GUnet OpenEclass 1.7.3 includes phpMyAdmin 2.10.0.2 by default, which allows remote logins. Attackers with access to…
CVE-2020-37113 — High (CVSS 8.8): GUnet OpenEclass 1.7.3 allows authenticated users to bypass file extension restrictions when uploading files. By…
CVE-2026-24665 — High (CVSS 8.7): The Open eClass platform (formerly known as GUnet eClass) is a complete course management system. Prior to version 4.2,…
CVE-2026-24669 — High (CVSS 7.8): The Open eClass platform (formerly known as GUnet eClass) is a complete course management system. Prior to version 4.2,…
CVE-2026-24773 — High (CVSS 7.5): The Open eClass platform (formerly known as GUnet eClass) is a complete course management system. Prior to version 4.2,…
CVE-2020-24381 — High (CVSS 7.5): GUnet Open eClass Platform (aka openeclass) before 3.11 might allow remote attackers to read students' submitted…

All CVEs affecting Gunet Open Eclass Platform →

Other CWE-434 (Unrestricted Upload of File with Dangerous Type) vulnerabilities

CVE-2026-48283 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Unrestricted Upload of File with Dangerous Type…
CVE-2026-48276 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Unrestricted Upload of File with Dangerous Type…
CVE-2026-57700 — Critical (CVSS 10.0): Unrestricted Upload of File with Dangerous Type vulnerability in Daan.Dev OMGF Pro allows Using Malicious Files. This…
CVE-2025-69129 — Critical (CVSS 10.0): Unauthenticated Arbitrary File Upload in WordPress & WooCommerce Scraper Plugin, Import Data from Any Site <= 1.0.7…
CVE-2026-40772 — Critical (CVSS 10.0): Unauthenticated Arbitrary File Upload in GeekyBot <= 1.2.2 versions.
CVE-2026-40412 — Critical (CVSS 10.0): Unrestricted upload of file with dangerous type in Azure Orbital Spatio allows an unauthorized attacker to execute code…

Browse all CWE-434 (Unrestricted Upload of File with Dangerous Type) vulnerabilities →