CVE-2026-24669: Insufficient Session Expiration

The Open eClass platform formerly known as GUnet eClass is a complete course management system. Prior to version 4.2, an insecure password reset mechanism allows local attackers to reuse a valid password reset token after it has already been used, enabling unauthorized password changes and...

CVE-2026-24666: Cross-Site Request Forgery (CSRF)

The Open eClass platform formerly known as GUnet eClass is a complete course management system. Prior to version 4.2, a Cross-Site Request Forgery CSRF vulnerability in multiple teacher-restricted endpoints allows attackers to induce authenticated teachers to perform unintended actions, such as...

CVE-2026-24665: Improper Neutralization of Input During Web Page Generation

The Open eClass platform formerly known as GUnet eClass is a complete course management system. Prior to version 4.2, a stored Cross-Site Scripting XSS vulnerability allows authenticated students to inject malicious JavaScript into uploaded assignment files, which is executed when instructors vie...

CVE-2026-24664: Observable Response Discrepancy

The Open eClass platform formerly known as GUnet eClass is a complete course management system. Prior to version 4.2, a username enumeration vulnerability allows unauthenticated attackers to identify valid user accounts by analyzing differences in the login response behavior. This issue has been...

CVE-2026-24673: Unrestricted Upload of File with Dangerous Type

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...

PT-2026-6201

Name of the Vulnerable Software and Affected Versions Open eClass versions prior to 4.2 Description The Open eClass platform, previously known as GUnet eClass, is a course management system. A flaw in the password reset process in versions prior to 4.2 allows a local attacker to reuse a valid...

Open eClass Access Control Vulnerability

Open eClass is an open-source e-classroom system developed by the Greek Universities Network. Versions of Open eClass prior to 4.2 contained a security vulnerability related to access control. This vulnerability resulted from improper access control mechanisms, which could allow authenticated...

CVE-2026-24667: Insufficient Session Expiration

The Open eClass platform formerly known as GUnet eClass is a complete course management system. Prior to version 4.2, failure to invalidate active user sessions after a password change allows existing session tokens to remain valid, potentially enabling unauthorized continued access to user...

Open eClass Cross-Site Request Forgery Vulnerability

Open eClass is an open-source e-classroom system developed by the Greek Universities Network. Versions of Open eClass prior to 4.2 contained a cross-site request forgeing vulnerability. This vulnerability stemmed from cross-site request forgery occurring at multiple teacher-restricted endpoints,...

Open eClass security vulnerabilities

Open eClass is an open-source e-classroom system developed by the Greek Universities Network. Versions of Open eClass prior to 4.2 contained security vulnerabilities. These vulnerabilities were caused by business logic flaws, which could allow authenticated students to mark themselves as attendin...

CVE-2026-24671: Improper Neutralization of Input During Web Page Generation

The Open eClass platform formerly known as GUnet eClass is a complete course management system. Prior to version 4.2, a Stored Cross-Site Scripting XSS vulnerability allows authenticated high-privileged users teachers or administrators to inject malicious JavaScript into multiple user-controllabl...

Open eClass Cross-Site Script Vulnerabilities

Open eClass is an e-classroom system developed by the Greek Universities Network. Versions of Open eClass prior to 4.2 contained a cross-site scripting vulnerability. This vulnerability stemmed from stored-xpected cross-site scripting, which could lead to the execution of malicious JavaScript...

CVE-2026-22241

The Open eClass platform formerly known as GUnet eClass is a complete course management system. Prior to version 4.2, an arbitrary file upload vulnerability in the theme import functionality enables an attacker with administrative privileges to upload arbitrary files on the server's file system...

CVE-2020-24381

GUnet Open eClass Platform aka openeclass before 3.11 might allow remote attackers to read students' submitted assessments because it does not ensure that the web server blocks directory listings, and the data directory is inside the web root by default...

CVE-2026-22241

The Open eClass platform formerly known as GUnet eClass is a complete course management system. Prior to version 4.2, an arbitrary file upload vulnerability in the theme import functionality enables an attacker with administrative privileges to upload arbitrary files on the server's file system...

CVE-2026-22241

The CVE concerns Open eClass (GUnet eClass) before version 4.2, where an arbitrary file upload vulnerability in the theme import feature allowed an attacker with administrative privileges to place files on the server’s filesystem. The root cause is lack of validation/sanitization of files inside ...

CVE-2026-22241 Open eClass has Unrestricted File Upload that Leads to Remote Code Execution (RCE)

The Open eClass platform formerly known as GUnet eClass is a complete course management system. Prior to version 4.2, an arbitrary file upload vulnerability in the theme import functionality enables an attacker with administrative privileges to upload arbitrary files on the server's file system...

EUVD-2026-1672

The Open eClass platform formerly known as GUnet eClass is a complete course management system. Prior to version 4.2, an arbitrary file upload vulnerability in the theme import functionality enables an attacker with administrative privileges to upload arbitrary files on the server's file system...

CVE-2026-22241 Open eClass has Unrestricted File Upload that Leads to Remote Code Execution (RCE)

The Open eClass platform formerly known as GUnet eClass is a complete course management system. Prior to version 4.2, an arbitrary file upload vulnerability in the theme import functionality enables an attacker with administrative privileges to upload arbitrary files on the server's file system...

CVE-2026-22241 Open eClass has Unrestricted File Upload that Leads to Remote Code Execution (RCE)

The Open eClass platform formerly known as GUnet eClass is a complete course management system. Prior to version 4.2, an arbitrary file upload vulnerability in the theme import functionality enables an attacker with administrative privileges to upload arbitrary files on the server's file system...