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Vulnerability record · CVE-2024-26503 · published 14 March 2024

CVE-2024-26503: Openeclass unrestricted file upload vulnerability

Openeclass · Openeclass

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.

9.1 CVSS 3.1 Critical EPSS 1.1% · top 34.9% CWE-434 · Unrestricted file upload
9.1CVSS 3.1 base score
1.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.less-secure.com/2024/03/open-eclass-cve-2024-26503-unrestricted.html ExploitThird Party Advisory
https://www.less-secure.com/2024/03/open-eclass-cve-2024-26503-unrestricted.html ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2024-38530Openeclass unrestricted file upload vulnerabilityThe Open eClass platform (formerly known as GUnet eClass) is a complete Course Management System. An arbitrary file upload vulnerability in the "save…EPSS 0.78%9.8CVE-2024-31777Openeclass unrestricted file upload vulnerabilityFile Upload vulnerability in openeclass v.3.15 and before allows an attacker to execute arbitrary code via a crafted file to the certbadge.php endpoi…EPSS 3.8%7.3CVE-2026-22241Openeclass unrestricted file upload vulnerabilityThe Open eClass platform (formerly known as GUnet eClass) is a complete course management system. Prior to version 4.2, an arbitrary file upload vuln…EPSS 3.3%6.5CVE-2022-33116Openeclass path traversal vulnerabilityAn issue in the jmpath variable in /modules/mindmap/index.php of GUnet Open eClass Platform (aka openeclass) v3.12.4 and below allows attackers to re…EPSS 1.8%6.1CVE-2017-7389Openeclass cross-site scripting vulnerabilityMultiple Cross-Site Scripting (XSS) were discovered in 'openeclass Release_3.5.4'. The vulnerabilities exist due to insufficient filtration of user-s…EPSS 0.84%5.4CVE-2025-65734Openeclass cross-site scripting vulnerabilityAn authenticated arbitrary file upload vulnerability in the Courses/Work Assignments module of gunet Open eClass v3.11, and fixed in v3.13, allows at…EPSS 0.24%5.4CVE-2024-33253Openeclass cross-site scripting vulnerabilityCross-site scripting (XSS) vulnerability in GUnet OpenEclass E-learning Platform version 3.15 and before allows a authenticated privileged attacker t…EPSS 0.41%10.0CVE-2026-56291Balbooa Forms Joomla extension unauthenticated arbitrary file upload RCEThe Balbooa Forms extension for Joomla before version 2.4.1 accepts file uploads without authentication and does not restrict file type, allowing exe…KEVEPSS 15%analysed

Source: NIST National Vulnerability Database (record CVE-2024-26503), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.