CVE-2026-13521: Sourcecodester Class And Exam Timetabling System

High severity, CVSS 7.3. EPSS: 0.4% chance of exploitation in the next 30 days.

A vulnerability was identified in SourceCodester Class and Exam Timetabling System 1.0/5.php. Affected by this vulnerability is an unknown functionality of the file /preview5.php. Such manipulation of the argument course_year_section leads to sql injection. The attack may be performed from remote. The exploit is publicly available and might be used.

Affected products

• Sourcecodester Class And Exam Timetabling System: version 1.0 only; version 5.php only

Published 2026-06-29. Last modified 2026-06-29.