CVE-2026-24664

The Open eClass platform (formerly known as GUnet eClass) is a complete course management system. Prior to version 4.2, a username enumeration vulnerability allows unauthenticated attackers to identify valid user accounts by analyzing differences in the login response behavior. This issue has been patched in version 4.2.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/gunet/openeclass/security/advisories/GHSA-c3wq-m629-5h2j	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

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

History

17 Jun 2026, 10:23

Type	Values Removed	Values Added
Summary		(es) La plataforma Open eClass (anteriormente conocida como GUnet eClass) es un sistema completo de gestión de cursos. Antes de la versión 4.2, una vulnerabilidad de enumeración de nombres de usuario permite a atacantes no autenticados identificar cuentas de usuario válidas analizando diferencias en el comportamiento de la respuesta de inicio de sesión. Este problema ha sido parcheado en la versión 4.2.

10 Feb 2026, 18:49

Type	Values Removed	Values Added
CPE		cpe:2.3:a:gunet:open_eclass_platform::::::::
First Time		Gunet Gunet open Eclass Platform
References	~~() https://github.com/gunet/openeclass/security/advisories/GHSA-c3wq-m629-5h2j -~~	() https://github.com/gunet/openeclass/security/advisories/GHSA-c3wq-m629-5h2j - Exploit, Vendor Advisory

03 Feb 2026, 18:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-02-03 18:16

Updated : 2026-06-17 10:23

NVD link : CVE-2026-24664

Mitre link : CVE-2026-24664

CVE.ORG link : CVE-2026-24664

JSON object : View

Products Affected

gunet

open_eclass_platform

CWE

CWE-204

Observable Response Discrepancy

{"id": "CVE-2026-24664", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-24664", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-02-04T15:55:14.588969Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 1.4, "exploitabilityScore": 3.9}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "gunet", "product": "openeclass", "versions": [{"status": "affected", "version": "< 4.2"}]}]}], "published": "2026-02-03T18:16:19.377", "references": [{"url": "https://github.com/gunet/openeclass/security/advisories/GHSA-c3wq-m629-5h2j", "tags": ["Exploit", "Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-204"}]}], "descriptions": [{"lang": "en", "value": "The Open eClass platform (formerly known as GUnet eClass) is a complete course management system. Prior to version 4.2, a username enumeration vulnerability allows unauthenticated attackers to identify valid user accounts by analyzing differences in the login response behavior. This issue has been patched in version 4.2."}, {"lang": "es", "value": "La plataforma Open eClass (anteriormente conocida como GUnet eClass) es un sistema completo de gesti\u00f3n de cursos. Antes de la versi\u00f3n 4.2, una vulnerabilidad de enumeraci\u00f3n de nombres de usuario permite a atacantes no autenticados identificar cuentas de usuario v\u00e1lidas analizando diferencias en el comportamiento de la respuesta de inicio de sesi\u00f3n. Este problema ha sido parcheado en la versi\u00f3n 4.2."}], "lastModified": "2026-06-17T10:23:22.923", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:gunet:open_eclass_platform:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "62F1C084-2C90-4AB3-A13E-28323DC385C0", "versionEndExcluding": "4.2"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}