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TI-2020-19248 Aliases CVE-2020-37113GHSA-fx56-pxgc-fpm7

GUnet OpenEclass 1.7.3 E-learning platform - File Upload Extension Bypass

Priority HIGH 73CWE-434Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-434.

Summary

GUnet OpenEclass 1.7.3 allows authenticated users to bypass file extension restrictions when uploading files. By renaming a PHP file to .php3 or .PhP, an attacker can upload a web shell and execute arbitrary code on the server. This vulnerability enables remote code execution by bypassing the intended file type checks in the exercise submission feature.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00928 60th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
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
OpeneclassGUnet OpenEclass1.7.3 (2007)—No fix listedCNA
  • GUnet OpenEclass VendorOpeneclass Affected 1.7.3 (2007) Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:gunet:open_eclass_platform:1.7.3:*:*:*:*:*:*:*1.7.3Vulnerablegunet
  • cpe:2.3:a:gunet:open_eclass_platform:1.7.3:*:*:*:*:*:*:* Versions 1.7.3 Vulnerable ·gunet

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-37113
  2. 2026-10-03 Alias added: GHSA-fx56-pxgc-fpm7

References

Exploit 1

Patch 1

Other 1

  • TI-2024-25765 Open eClass Platform allows Arbitrary File Upload in "modules/h5p/save.php" CVSS 3.1CRITICAL 9.8
  • TI-2024-20927 File Upload vulnerability in openeclass v.3.15 and before allows an attacker to execute… CVSS 3.1CRITICAL 9.8
  • TI-2024-17447 Unrestricted File Upload vulnerability in Greek Universities Network Open eClass v.3.15… CVSS 3.1CRITICAL 9.1
  • TI-2020-19251 GUnet OpenEclass 1.7.3 E-learning platform - phpMyAdmin Remote Access CVSS 4.0HIGH 8.7
  • TI-2026-17851 Open eClass has Unrestricted File Upload that Leads to Remote Code Execution (RCE) CVSS 4.0HIGH 7.3
  • TI-2020-19250 GUnet OpenEclass 1.7.3 E-learning platform - Plaintext Password Storage CVSS 4.0HIGH 7.1
See all 12 →

Sources

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