CVE-2026-13565
Received Received - Intake

SQL Injection in Class and Exam Timetabling System

Publication date: 2026-06-29

Last updated on: 2026-06-29

Assigner: VulDB

Description
A vulnerability was determined in SourceCodester Class and Exam Timetabling System 1.0/1.php. Affected by this vulnerability is an unknown functionality of the file /edit_class1.php. Executing a manipulation of the argument ID can lead to sql injection. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized.

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Meta Information

Published
2026-06-29
Last Modified
2026-06-29
Generated
2026-06-29
AI Q&A
2026-06-29
EPSS Evaluated
N/A
NVD
CVE-2026-13565
EUVD
EUVD-2026-40076

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 issue found in the Class and Exam Timetabling System version 1.0, specifically in the file /edit_class1.php. It occurs due to improper input validation of the 'id' parameter, which allows an attacker to inject malicious SQL queries remotely without needing authentication.

The vulnerability enables attackers to manipulate the database queries executed by the system, potentially leading to unauthorized access to the database, data tampering, and leakage of sensitive information.

Impact Analysis

Exploiting this vulnerability can allow attackers to gain unauthorized access to the database, modify or delete data, and extract sensitive information. This can compromise the integrity, confidentiality, and availability of the system and its data.

The attack can be performed remotely without authentication, increasing the risk of exploitation. Potential impacts include data breaches, loss of data integrity, and possible full system compromise.

Detection Guidance

This SQL injection vulnerability in /edit_class1.php can be detected by testing the 'id' parameter for SQL injection flaws using various techniques such as boolean-based blind, error-based, time-based blind, and UNION query attacks.

Common commands to detect this vulnerability include using SQL injection testing tools or manual injection attempts, for example:

  • Using sqlmap to test the URL parameter: sqlmap -u "http://targetsite/edit_class1.php?id=1" --batch
  • Manually injecting SQL payloads such as ' OR '1'='1 to observe unexpected behavior or error messages.
  • Using curl to send crafted requests and analyze responses for SQL errors or delays indicating time-based blind SQL injection.
Mitigation Strategies

Immediate mitigation steps include:

  • Implement prepared statements with parameterized queries to prevent SQL injection.
  • Validate and sanitize all user inputs, especially the 'id' parameter in /edit_class1.php.
  • Minimize database permissions to restrict the impact of a potential SQL injection attack.
  • Conduct regular security audits and code reviews to identify and fix similar vulnerabilities.
Compliance Impact

This SQL injection vulnerability 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 address this vulnerability may result in non-compliance with these standards due to compromised confidentiality, integrity, and availability of data.

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