CVE-2026-16485 SourceCodester CVE debrief

Who should care

Users of SourceCodester Class and Exam Timetabling System 1.0, operators, platform administrators, vulnerability management teams, and security teams should apply patches or mitigations to prevent cross-site scripting attacks. They should review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.

Technical summary

The vulnerability is located in the /class.php file of SourceCodester Class and Exam Timetabling System 1.0. The 'day' argument is susceptible to cross-site scripting attacks when manipulated. The attack can be launched remotely, and the exploit has been disclosed to the public. Users of SourceCodester Class and Exam Timetabling System 1.0 should apply patches or mitigations to prevent cross-site scripting attacks.

Defensive priority

Apply patches or updates to fix the cross-site scripting vulnerability in 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.

Recommended defensive actions

• Apply patches or updates to fix the cross-site scripting vulnerability
• Implement input validation and sanitization for user-supplied data
• Use a web application firewall to detect and prevent cross-site scripting attacks
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• 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

Evidence notes

The CVE record was published on 2026-07-21T23:17:00.153Z and was last modified on 2026-07-22T16:25:46.380Z. The NVD entry is currently Deferred. The vulnerability has been found in SourceCodester Class and Exam Timetabling System 1.0. Affected by this issue is some unknown functionality of the file /class.php. Such manipulation of the argument day leads to cross site scripting. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. Evidence limits suggest verifying affected scope and vendor guidance.

Official resources