CVE-2026-13485
Deferred Deferred - Pending Action

SQL Injection in Class and Exam Timetabling System

Publication date: 2026-06-28

Last updated on: 2026-06-29

Assigner: VulDB

Description
A vulnerability was found in SourceCodester Class and Exam Timetabling System 1.0. This affects an unknown function of the file /preview.php. Performing a manipulation of the argument course_year_section results in sql injection. The attack can be initiated remotely. The exploit has been made public and could be used.

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Meta Information

Published
2026-06-28
Last Modified
2026-06-29
Generated
2026-07-18
AI Q&A
2026-06-28
EPSS Evaluated
2026-07-17
NVD
CVE-2026-13485
EUVD
EUVD-2026-39985

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

The CVE-2026-13485 vulnerability affects the Class and Exam Timetabling System Project V1.0, specifically in the `/preview.php` file. It is a SQL injection flaw caused by improper input validation of the `course_year_section` parameter. This flaw allows attackers to inject malicious SQL queries remotely without needing authentication.

Attackers can exploit this vulnerability using various SQL injection techniques such as boolean-based blind, error-based, time-based blind, and UNION query methods.

Detection Guidance

This vulnerability can be detected by testing the `course_year_section` parameter in the `/preview.php` file for SQL injection flaws. Attackers typically use payloads such as boolean-based blind, error-based, time-based blind, and UNION query techniques to exploit this issue.

To detect the vulnerability, you can use SQL injection testing tools or manual commands that inject SQL payloads into the `course_year_section` parameter and observe the responses.

  • Use curl or wget to send crafted requests to the vulnerable endpoint, for example: curl "http://target/preview.php?course_year_section=1' OR '1'='1"
  • Use sqlmap, an automated SQL injection tool, targeting the parameter: sqlmap -u "http://target/preview.php?course_year_section=1" --batch
  • Observe error messages or time delays in responses that indicate SQL injection vulnerabilities.
Impact Analysis

Exploitation of this vulnerability can lead to unauthorized access to the database, allowing attackers to tamper with data, leak sensitive information, gain control over the system, and potentially disrupt services.

Compliance Impact

The SQL injection vulnerability in the Class and Exam Timetabling System allows unauthorized database access, data tampering, and sensitive information leakage. Such impacts can lead to violations of data protection regulations like GDPR and HIPAA, which require safeguarding personal and sensitive data against unauthorized access and breaches.

Failure to remediate this vulnerability could result in non-compliance with these standards due to compromised confidentiality, integrity, and availability of protected data.

Mitigation Strategies

Immediate mitigation steps include implementing prepared statements and proper input validation on the `course_year_section` parameter to prevent SQL injection.

Additionally, minimize database permissions to limit the impact of a potential exploit and conduct regular security audits to detect and fix vulnerabilities.

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