CVE-2026-16484
Deferred Deferred - Pending Action

SQL Injection in Class and Exam Timetabling System

Publication date: 2026-07-21

Last updated on: 2026-07-22

Assigner: VulDB

Description
A flaw has been found in SourceCodester Class and Exam Timetabling System 1.0. Affected by this vulnerability is an unknown functionality of the file /edit_subjecta.php. This manipulation of the argument ID causes sql injection. The attack can be initiated remotely. The exploit has been published and may be used.

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Meta Information

Published
2026-07-21
Last Modified
2026-07-22
Generated
2026-08-11
AI Q&A
2026-07-22
EPSS Evaluated
2026-08-09
NVD
CVE-2026-16484
EUVD
EUVD-2026-46443

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
sourcecodester class_and_exam_timetabling_system 1.0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-89 The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.
CWE-74 The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.

Attack-Flow Graph

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Executive Summary

This vulnerability is a SQL injection flaw in SourceCodester Class and Exam Timetabling System 1.0. It exists in the file /edit_subjecta.php where the argument ID can be manipulated to inject malicious SQL code. The attack can be executed remotely without requiring authentication.

Detection Guidance

Detecting SQL injection vulnerabilities like this one typically involves checking web application logs for suspicious input patterns, such as single quotes or SQL keywords in parameters. Use tools like sqlmap to test for vulnerabilities by sending crafted requests to /edit_subjecta.php with the ID parameter. Monitor database queries for unexpected or unauthorized access.

Impact Analysis

An attacker could exploit this to access, modify, or delete sensitive data in the database. This may lead to unauthorized disclosure of exam schedules, student records, or other confidential information. The exploit is publicly available, increasing the risk of attacks.

Compliance Impact

This vulnerability could lead to violations of GDPR (data protection) and HIPAA (health information privacy) if it exposes personal or health-related data. Organizations may face legal penalties, reputational damage, and loss of trust due to non-compliance with these regulations.

Mitigation Strategies

Immediately patch the application by updating to the latest version or applying a vendor-supplied fix. Implement input validation for the ID parameter in /edit_subjecta.php to reject non-numeric values. Use web application firewalls to filter malicious SQL queries. Disable remote access if not required and restrict database permissions to least privilege.

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