CVE-2020-37113

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.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://download.openeclass.org/files/docs/1.7/CHANGES.txt
https://www.exploit-db.com/exploits/48163
https://www.openeclass.org/
https://www.vulncheck.com/advisories/gunet-openeclass-e-learning-platform-file-upload-extension-bypass

Configurations

No configuration.

History

03 Feb 2026, 18:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-02-03 18:16

Updated : 2026-02-03 18:16

NVD link : CVE-2020-37113

Mitre link : CVE-2020-37113

CVE.ORG link : CVE-2020-37113

JSON object : View

Products Affected

No product.

CWE

CWE-434

Unrestricted Upload of File with Dangerous Type

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