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.

GUnet OpenEclass 1.7.3 contains multiple SQL injection vulnerabilities that allow authenticated attackers to manipulate database queries through unvalidated parameters. Attackers can exploit the 'month' parameter in the agenda module and other endpoints to extract sensitive database information using error-based or time-based injection techniques.

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.

GUnet OpenEclass 1.7.3 allows unauthenticated and authenticated users to access sensitive information, including system information, application version, and other students' uploaded assessments, due to improper access controls and information disclosure flaws in various modules. Attackers can retrieve system info, version info, and view or download other users' files without proper authorization.

GUnet OpenEclass 1.7.3 stores user credentials in plaintext, allowing administrators to view all registered users' usernames and passwords without encryption. This vulnerability exposes sensitive information and increases the risk of credential theft and unauthorized access.

GUnet OpenEclass 1.7.3 includes phpMyAdmin 2.10.0.2 by default, which allows remote logins. Attackers with access to the platform can remotely access phpMyAdmin and, after uploading a shell, view the config.php file to obtain the MySQL password, leading to full database compromise.

GUnet Open eClass (aka openeclass) before 3.12.2 allows XSS via the modules/auth/formuser.php auth parameter.

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 patched in version 4.2.

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 view the submission. This issue has been patched in version 4.2.

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 modifying assignment grades, via crafted requests. This issue has been patched in version 4.2.

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 accounts. This issue has been patched in version 4.2.

The Open eClass platform (formerly known as GUnet eClass) is a complete course management system. Prior to version 4.2, a broken access control vulnerability allows authenticated students to add content to existing course units, an action normally restricted to higher-privileged roles. This issue has been patched in version 4.2.

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 potential account takeover. This issue has been patched in version 4.2.

The Open eClass platform (formerly known as GUnet eClass) is a complete course management system. Prior to version 4.2, a broken access control vulnerability allows authenticated students to create new course units, an action normally restricted to higher-privileged roles. This issue has been patched in version 4.2.

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-controllable input fields across the application, which is executed when other users access affected pages. This issue has been patched in version 4.2.

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 user profile fields, which is executed when users with viewing privileges access affected application pages. This issue has been patched in version 4.2.

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.

The Open eClass platform (formerly known as GUnet eClass) is a complete course management system. Prior to version 4.2, a Reflected Cross-Site Scripting (XSS) vulnerability allows remote attackers to execute arbitrary JavaScript in the context of authenticated users by crafting malicious URLs and tricking victims into visiting them. This issue has been patched in version 4.2.

The Open eClass platform (formerly known as GUnet eClass) is a complete course management system. Prior to version 4.2, an Insecure Direct Object Reference (IDOR) vulnerability allows unauthenticated remote attackers to access personal files of other users by directly requesting predictable user identifiers. This issue has been patched in version 4.2.

The Open eClass platform (formerly known as GUnet eClass) is a complete course management system. Prior to version 4.2, a business logic vulnerability allows authenticated students to improperly mark themselves as present in attendance activities, including activities that have already expired, by directly accessing a crafted URL. This issue has been patched in version 4.2.