CVE-2026-120343 Details

A cross-site scripting (XSS) vulnerability has been identified in the CloudClassroom-PHP-Project, specifically within the 'manageassessment2.php' file. This issue arises from an unknown function that improperly handles the 'ExamName' and question parameters (Q1 to Q5). The vulnerability allows an unauthenticated attacker to inject JavaScript into assessment fields, which is later executed when the assessment is viewed by an authenticated user. The flaw exists in the application's origin, potentially leading to unauthorized data access or manipulation.

To address this vulnerability, implement the following steps: 1. After each authentication redirect, stop further execution to prevent unauthorized access. 2. Enforce authorization checks on the server side before allowing faculty members to update assessments. 3. Use prepared statements for database queries to prevent injection attacks. 4. Encode output values for their specific context to prevent execution of injected scripts. 5. Add Cross-Site Request Forgery (CSRF) protection to forms that change application state. 6. Consider implementing a restrictive Content Security Policy as an additional layer of defense.