CVE-2026-16202 SourceCodester CVE debrief

Who should care

Users of SourceCodester Class and Exam Timetabling System 1.0 should assess the risk and apply patches or mitigations as available. This includes operators, platform administrators, vulnerability management teams, and security teams who need to review the vulnerability and implement necessary controls.

Technical summary

The vulnerability is a cross-site scripting issue in the /CYS.php file of SourceCodester Class and Exam Timetabling System 1.0. The manipulation of the course argument leads to cross-site scripting. The attack can be carried out remotely. Users of SourceCodester Class and Exam Timetabling System 1.0 should assess the risk and apply patches or mitigations as available. Additional context indicates that limited information is available, and defenders should verify the affected scope and severity with the vendor. Evidence-based defensive priority is to apply patches or mitigations to prevent cross-site scripting attacks.

Defensive priority

Apply patches or mitigations for SourceCodester Class and Exam Timetabling System 1.0 to prevent cross-site scripting attacks. This is a high-priority task, as the vulnerability is publicly disclosed and can be exploited remotely.

Recommended defensive actions

• Apply available patches for SourceCodester Class and Exam Timetabling System 1.0
• Implement input validation and sanitization for user-supplied data
• Use a web application firewall to detect and prevent cross-site scripting attacks
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record was published on 2026-07-19T02:16:43.350Z and has not been modified since then. The NVD entry is currently Received. There is limited information available about the vulnerability, and defenders should verify the affected scope and severity with the vendor. The vulnerability is a cross-site scripting issue in the /CYS.php file of SourceCodester Class and Exam Timetabling System 1.0.

Official resources