CVE-2026-86159
Received Received - Intake

SQL Injection in Online Voting System 1.0

Publication date: 2026-09-06

Last updated on: 2026-09-06

Assigner: VulDB

Description
A flaw has been found in SourceCodester Online Voting System 1.0. Impacted is an unknown function of the file /ajax.php?action=save_user. This manipulation of the argument ID causes sql injection. The attack may be initiated remotely. The exploit has been published and may be used.

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Meta Information

Published
2026-09-06
Last Modified
2026-09-06
Generated
2026-09-06
AI Q&A
2026-09-06
EPSS Evaluated
N/A
NVD
CVE-2026-86159
EUVD
EUVD-2026-72039

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
sourcecodester online_voting_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

CVE-2026-86159 is a SQL injection vulnerability in the Online Voting System 1.0. It exists in the /ajax.php file when handling the 'ID' parameter. Attackers can inject malicious SQL queries without authentication due to insufficient input validation.

Detection Guidance
  • Check for unusual SQL query patterns or errors in web server logs, especially around the /ajax.php?action=save_user endpoint.
  • Use tools like SQLmap to test for SQL injection vulnerabilities by sending crafted payloads to the ID parameter in the URL.
  • Monitor database logs for unexpected queries or unauthorized access attempts.
  • Inspect network traffic for suspicious requests targeting the vulnerable endpoint.
Impact Analysis

This vulnerability allows remote attackers to execute unauthorized SQL commands. Potential impacts include unauthorized database access, data tampering, sensitive information leakage, system compromise, and service disruption. Attackers may use techniques like boolean-based or time-based blind SQL injection.

Compliance Impact

This vulnerability could lead to non-compliance with GDPR and HIPAA due to unauthorized data access and leakage. GDPR requires protection of personal data, while HIPAA mandates safeguarding health information. Exploitation may result in data breaches, triggering legal penalties and regulatory fines.

Mitigation Strategies
  • Implement prepared statements with parameter binding for all database queries to prevent SQL injection.
  • Apply strict input validation to sanitize and restrict the ID parameter to expected values.
  • Minimize database user permissions to limit potential damage from exploitation.
  • Update the Online Voting System to the latest patched version if available.
  • Conduct a security audit to identify and address other potential vulnerabilities.

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