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CVE CVE-2020-37113

CVE-2020-37113

PHP

Severity: HIGH
CVSS: 8.8CVSS
Published: 2026-02-03
Last modified: 2026-02-12
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE: CWE-434

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.

References

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

Summary

Description

References