CVE-2026-16228
Received Received - Intake

SQL Injection in Class and Exam Timetabling System

Publication date: 2026-07-19

Last updated on: 2026-07-19

Assigner: VulDB

Description
A vulnerability was detected in SourceCodester Class and Exam Timetabling System 1.0. Affected is an unknown function of the file /edit_schoolyr.php. Performing a manipulation of the argument ID results in sql injection. It is possible to initiate the attack remotely. The exploit is now public and may be used.

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Meta Information

Published
2026-07-19
Last Modified
2026-07-19
Generated
2026-07-20
AI Q&A
2026-07-19
EPSS Evaluated
N/A
NVD
CVE-2026-16228
EUVD
EUVD-2026-45444

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 the Class and Exam Timetabling System 1.0. It exists in the /edit_schoolyr.php file where the 'ID' argument is improperly validated. Attackers can inject malicious SQL queries through this parameter, allowing unauthorized database access and manipulation without authentication.

Detection Guidance

To detect SQL injection vulnerabilities like CVE-2026-16228, test the /edit_schoolyr.php endpoint with manipulated 'ID' parameter inputs. Use tools like SQLmap with: sqlmap -u "http://target/edit_schoolyr.php?id=1" --batch --dbs. Alternatively, manually test with payloads such as ' OR 1=1 -- or ' OR '1'='1' in the ID field.

Impact Analysis

This vulnerability allows attackers to access, modify, or delete sensitive data in the database. They could steal confidential information, alter timetables or exam records, or even take control of the system. Since no authentication is required, the risk is high for any user of this system.

Compliance Impact

This vulnerability likely violates GDPR and HIPAA requirements for data protection and security. It enables unauthorized access to personal and sensitive data, which could lead to legal penalties, fines, and reputational damage due to non-compliance with data protection regulations.

Mitigation Strategies

Immediately apply input validation to sanitize the 'ID' parameter in /edit_schoolyr.php. Replace dynamic SQL queries with prepared statements using parameterized queries. Restrict database user permissions to least privilege. Conduct a security audit to identify other potential vulnerabilities.

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