CVE-2026-24664

Open eClass is Vulnerable to Username Enumeration via Login Response Discrepancies

CVSS 5.3 MEDIUMEPSS 0.3%CWE-204

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 5.3EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

03 Feb 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected products

gunet · openeclass

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References

https://github.com/gunet/openeclass/security/advisories/GHSA-c3wq-m629-5h2j