CVE-2026-75089
Received Received - Intake

SQL Injection in PHPGurukul Complaint Management System

Publication date: 2026-08-18

Last updated on: 2026-08-18

Assigner: VulDB

Description
A weakness has been identified in PHPGurukul Complaint Management System 1.0. Affected by this issue is some unknown functionality of the file user/check_availability.php. This manipulation of the argument email causes sql injection. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks.

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Meta Information

Published
2026-08-18
Last Modified
2026-08-18
Generated
2026-08-18
AI Q&A
2026-08-18
EPSS Evaluated
N/A
NVD
CVE-2026-75089
EUVD
EUVD-2026-60563

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
phpgurukul complaint_management_system From 1.0 (inc)

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 an unauthenticated SQL injection in PHPGurukul Complaint Management System 1.0. It exists in the user/check_availability.php file where the email parameter is directly concatenated into a SQL query without proper sanitization. Attackers can inject malicious SQL code during email availability checks, potentially accessing or modifying database contents without authentication.

Detection Guidance

To detect SQL injection vulnerabilities like CVE-2026-75089, test the email parameter in user/check_availability.php with payloads such as ' OR 1=1 -- or ' OR '1'='1. Use tools like sqlmap with: sqlmap -u "http://target.com/user/check_availability.php?email=test@example.com" --batch. Monitor HTTP responses for database errors or unexpected behavior.

Impact Analysis

This vulnerability allows remote attackers to execute arbitrary SQL commands on the database. Potential impacts include unauthorized access to sensitive data like user credentials and complaint records, data manipulation or deletion, and complete database compromise. Since no authentication is required, any user interacting with the vulnerable system could be affected.

Compliance Impact

This SQL injection vulnerability likely violates GDPR and HIPAA requirements for data protection and access controls. It enables unauthorized data access and potential data breaches, which are serious compliance violations. Organizations using this system would face significant regulatory penalties, reputational damage, and legal consequences for failing to protect sensitive personal and health information.

Mitigation Strategies

Immediately update the application to use prepared statements with bound parameters for all SQL queries. Validate and sanitize the email input server-side to ensure it matches expected formats. Restrict database user privileges to least privilege principles and avoid using root accounts for the web application.

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