---
id: CVE-2026-16156
title: >-
  A security flaw has been discovered in SourceCodester Class and Exam
  Timetabling System 1.0
summary: >-
  A security flaw has been discovered in SourceCodester Class and Exam
  Timetabling System 1.0. This affects an unknown part of the file /forexam.php.
  The manipulation of the argument day results in cross site scripting. It is
  possible to l…
severity: low
cvss: 3.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N'
cwe:
  - CWE-79
  - CWE-94
published: '2026-07-18'
updated: '2026-07-18'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-16156'
references:
  - url: 'https://github.com/justconter/cve/issues/3'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2026-16156'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/857081'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/379921'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/379921/cti'
    label: cna@vuldb.com
  - url: 'https://www.sourcecodester.com/'
    label: cna@vuldb.com
tags:
  - nvd
ingestedAt: '2026-07-19T08:30:40.237Z'
epss: 0.00348
epssPercentile: 0.25622
---

## Overview

A security flaw has been discovered in SourceCodester Class and Exam Timetabling System 1.0. This affects an unknown part of the file /forexam.php. The manipulation of the argument day results in cross site scripting. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.