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CVE-2026-24673— Open eClass Has File Upload Filter Bypass via ZIP Archive Extraction

CVSS 4.3 · Medium EPSS 0.04% · P14
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I. Basic Information for CVE-2026-24673

Vulnerability Information
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Vulnerability Title
Open eClass Has File Upload Filter Bypass via ZIP Archive Extraction
Source: NVD (National Vulnerability Database)
Vulnerability Description
The Open eClass platform (formerly known as GUnet eClass) is a complete course management system. Prior to version 4.2, a file upload validation bypass vulnerability allows attackers to upload files with prohibited extensions by embedding them inside ZIP archives and extracting them using the application’s built-in decompression functionality. This issue has been patched in version 4.2.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
危险类型文件的不加限制上传
Source: NVD (National Vulnerability Database)
Vulnerability Title
Open eClass 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Open eClass是Greek Universities Network开源的一个电子课堂系统。 Open eClass 4.2之前版本存在代码问题漏洞，该漏洞源于文件上传验证绕过，可能导致攻击者通过ZIP归档上传禁止扩展名的文件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
gunetopeneclass < 4.2 -

II. Public POCs for CVE-2026-24673

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III. Intelligence Information for CVE-2026-24673

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Same Patch Batch · gunet · 2026-02-03 · 13 CVEs total

CVE-2026-246658.7 HIGHOpen eClass is Vulnerable to Stored Cross-Site Scripting (XSS) via Student Assignment Uplo
CVE-2026-246697.8 HIGHOpen eClass Insecure Password Reset Token Reuse Enables Account Takeover
CVE-2026-247737.5 HIGHOpen eClass Unauthenticated IDOR Allows Access to Arbitrary User Files
CVE-2026-246727.3 HIGHOpen eClass is Vulnerable to Stored Cross-Site Scripting (XSS) in User Profile Fields
CVE-2026-246666.5 MEDIUMOpen eClass is Vulnerable to CSRF in Teacher-Restricted Endpoints Allows Unauthorized Acti
CVE-2026-246686.5 MEDIUMOpen eClass Broken Access Control Allows Students to Add Content to Course Units
CVE-2026-246706.5 MEDIUMOpen eClass Has Broken Access Control in Course Units Module Allows Students to Create Uni
CVE-2026-246716.1 MEDIUMOpen eClass is Vulnerable to Stored Cross-Site Scripting (XSS) in Multiple High-Privilege
CVE-2026-246645.3 MEDIUMOpen eClass is Vulnerable to Username Enumeration via Login Response Discrepancies
CVE-2026-246675.0 MEDIUMOpen eClass's Active Sessions Not Invalidated After Password Change Allow Persistent Accou
CVE-2026-246744.7 MEDIUMOpen eClass is Vulnerable to Reflected Cross-Site Scripting (XSS) in Multiple Endpoints
CVE-2026-247744.3 MEDIUMOpen eClass Business Logic Flaw Allows Students to Mark Attendance in Expired Activities

IV. Related Vulnerabilities

Same product: openeclass
Same vendor: gunet
Same weakness: CWE-434

V. Comments for CVE-2026-24673

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