What’s Vulnerable › Vulnerabilities
CVE-2026-24664: Open eClass is Vulnerable to Username Enumeration via Login Response Discrepancies
- Severity: medium (CVSS 5.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2026-02-03 · updated 2026-06-17
- Weakness: CWE-204
Description
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.
Affected products
- gunet openeclass: before 4.2 — fixed in 4.2
How to fix
Upgrade to a fixed version: gunet openeclass 4.2. Check the vendor advisory for mitigations.
References
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