Changelogpatch
https://download.openeclass.org/files/docs/1.7/CHANGES.txt CVE-2020-37113
HIGH
GUnet OpenEclass 1.7.3 E-learning platform - File Upload Extension Bypass
Record summary
CVE-2020-37113 has a selected CVSS score of 8.7 (high); EIP currently links 1 catalogued exploit.
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.
Description source: CVE List
Exploitation context
Available material
- Catalogued exploits
- 1
CISA SSVC decision
ExploitationPoC
AutomatableNo
Technical impactTotal
CISA Coordinator · SSVC 2.0.3 · Evaluated Feb 6, 2026 · Source: CVE List
Affected products and versions
1| Product | Source | Version range | Status |
|---|---|---|---|
GUnet OpenEclassBrowse Openeclass / GUnet OpenEclass | CVE List | 1.7.3 (2007) | affected |
Proofs of concept
1Catalogued exploits
ExploitDBGUnet OpenEclass 1.7.3 E-learning platform - 'month' SQL InjectionExploitDB exploitby emaragkosNot analyzed1 file
References
5nvd.nist.gov
https://nvd.nist.gov/vuln/detail/CVE-2020-37113 ExploitDB-48163exploit
https://www.exploit-db.com/exploits/48163 Official Vendor Homepageproduct
https://www.openeclass.org/ VulnCheck Advisory: GUnet OpenEclass 1.7.3 E-learning platform - File Upload Extension BypassThird-party advisory
https://www.vulncheck.com/advisories/gunet-openeclass-e-learning-platform-file-upload-extension-bypass