Sourcecodester · Class/Exam Timetabling System · CVE-2026-13521
**Name of the Vulnerable Software and Affected Versions**
SourceCodester Class and Exam Timetabling System version 1.0
**Description**
A remote SQL injection exists in the `/preview5.php` endpoint. This issue occurs when the `course year section` variable is manipulated, allowing an attacker to interfere with the database queries.
**Recommendations**
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Avoid using the `course year section` parameter in the `/preview5.php` endpoint until the issue is resolved.