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TI-2026-19887 Aliases CVE-2026-24665

Open eClass is Vulnerable to Stored Cross-Site Scripting (XSS) via Student Assignment Upload

Priority LOW 39CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

The Open eClass platform (formerly known as GUnet eClass) is a complete course management system. Prior to version 4.2, a stored Cross-Site Scripting (XSS) vulnerability allows authenticated students to inject malicious JavaScript into uploaded assignment files, which is executed when instructors view the submission. This issue has been patched in version 4.2.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00222 12th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed openeclass (gunet): 4.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
gunetopeneclassbefore 4.24.2Patch availableCNA
  • openeclass Vendorgunet Affected before 4.2 Fixed in 4.2 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:gunet:open_eclass_platform:*:*:*:*:*:*:*:*before 4.2Vulnerablegunet
  • cpe:2.3:a:gunet:open_eclass_platform:*:*:*:*:*:*:*:* Versions before 4.2 Vulnerable ·gunet

Remediation

  • Fix · CNA openeclass (gunet) Fixed in 4.2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-24665

References

Exploit 1

  • TI-2020-19251 GUnet OpenEclass 1.7.3 E-learning platform - phpMyAdmin Remote Access CVSS 4.0HIGH 8.7
  • TI-2020-19248 GUnet OpenEclass 1.7.3 E-learning platform - File Upload Extension Bypass CVSS 4.0HIGH 8.7
  • TI-2020-19250 GUnet OpenEclass 1.7.3 E-learning platform - Plaintext Password Storage CVSS 4.0HIGH 7.1
  • TI-2020-19247 GUnet OpenEclass 1.7.3 E-learning platform - 'month' SQL Injection CVSS 4.0HIGH 7.1
  • TI-2026-19974 Open eClass Unauthenticated IDOR Allows Access to Arbitrary User Files CVSS 3.1HIGH 7.5
  • TI-2020-14923 GUnet Open eClass Platform (aka openeclass) before 3.11 might allow remote attackers to… CVSS 3.1HIGH 7.5
See all 19 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences