CVE-2026-16155 Details
Description
A vulnerability was identified in SourceCodester Class and Exam Timetabling System 1.0. Affected by this issue is some unknown functionality of the file /schoolyr.php. The manipulation of the argument sy leads to cross site scripting. It is possible to initiate the attack remotely. The exploit is publicly available and might be used.
A cross-site scripting (XSS) vulnerability has been identified in SourceCodester Class and Exam Timetabling System version 1.0. The issue arises in the file '/schoolyr.php', where the 'sy' parameter is not properly validated or encoded, allowing attackers to inject malicious scripts. This vulnerability can be exploited remotely, with public proof-of-concept available.
To address this vulnerability, implement proper output encoding for user inputs, especially in the 'sy' parameter of the '/schoolyr.php' file. Additionally, validate and filter input data to reject or escape potentially malicious content. Consider using a Content Security Policy (CSP) to restrict script execution sources, and set secure and HttpOnly flags for sensitive cookies. Regular security audits can help identify and fix such vulnerabilities.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Jul 18, 2026CISA-ADP
Assessed Jul 21, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/justconter/cve/issues/4 | [email protected] | ExploitIssue TrackingTechnical Description |
| https://vuldb.com/cve/CVE-2026-16155 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/submit/857080 | [email protected] | Issue TrackingPermission Required |
| https://vuldb.com/vuln/379920 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/vuln/379920/cti | [email protected] | Content Wall |
| https://www.sourcecodester.com/ | [email protected] | Vendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-79 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | [email protected] |
| CWE-94 | Improper Control of Generation of Code ('Code Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| SourceCodester Class and Exam Timetabling System | 1.0 |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 21, 2026 | CVE Modified | CISA-ADP |
| Jul 18, 2026 | New CVE Received | [email protected] |