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CVE-2024-26503

CriticalPublished

Unrestricted File Upload vulnerability in Greek Universities Network Open eClass v.3.15 and earlier allows attackers to run arbitrary code via upload of...

Published: Mar 14, 2024
Updated: Aug 28, 2024
Assigning CNA: mitre
Evidence observed: Aug 8, 2026

Primary CVSS

9.1/ 10Critical

nvd · CVSS 3.1

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

EPSS probability estimate

1.1%

Low · next 30 days

Percentile: 64.5%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

Unrestricted File Upload vulnerability in Greek Universities Network Open eClass v.3.15 and earlier allows attackers to run arbitrary code via upload of crafted file to certbadge.php endpoint.

Sources

Exploit-CVE-2024-26503Exploit
Exploit for Open eClass – CVE-2024-26503: Unrestricted File Upload Leads to Remote Code Execution

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