Exposure of Sensitive Information to an Unauthorized Actor
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.
CWE-200 - Information Exposure
An information exposure vulnerability is categorized as an information flow (IF) weakness, which can potentially allow unauthorized access to otherwise classified information in the application, such as confidential personal information (demographics, financials, health records, etc.), business secrets, and the application's internal environment.