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CVE-2020-37113

HIGH

8.8

Description

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.

CVE Details

CVSS v3.1 Score8.8

SeverityHIGH

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published2/3/2026

Last Modified2/12/2026

Sourcenvd

Honeypot Sightings0

Affected Products

gunet:open_eclass_platform

Weaknesses (CWE)

CWE-434

References

https://download.openeclass.org/files/docs/1.7/CHANGES.txt(disclosure@vulncheck.com)

https://www.exploit-db.com/exploits/48163(disclosure@vulncheck.com)

https://www.openeclass.org/(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/gunet-openeclass-e-learning-platform-file-upload-extension-bypass(disclosure@vulncheck.com)

IOC Correlations

No correlations recorded

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