CVE-2026-26701: Personnel Property Equipment System SQLi

CVE-2026-26701 Overview

A critical SQL Injection vulnerability has been identified in the sourcecodester Personnel Property Equipment System v1.0. The vulnerability exists in the /ppes/admin/edit_tecnical_user.php endpoint, allowing remote attackers to execute arbitrary SQL commands against the underlying database without requiring authentication.

Critical Impact

This SQL Injection vulnerability enables unauthenticated attackers to extract, modify, or delete sensitive data from the Personnel Property Equipment System database, potentially compromising all stored personnel and equipment records.

Affected Products

• Personnel Property Equipment System v1.0 by Jon-Remus-Sevellejo
• Deployments using the /ppes/admin/edit_tecnical_user.php endpoint

Discovery Timeline

• 2026-03-02 - CVE-2026-26701 published to NVD
• 2026-03-03 - Last updated in NVD database

Technical Details for CVE-2026-26701

Vulnerability Analysis

This SQL Injection vulnerability (CWE-89) affects the Personnel Property Equipment System, a web application designed to manage personnel property and equipment records. The vulnerable endpoint /ppes/admin/edit_tecnical_user.php fails to properly sanitize user-supplied input before incorporating it into SQL queries, creating a classic injection point.

The vulnerability is exploitable over the network with low attack complexity and requires no privileges or user interaction. Successful exploitation can result in complete compromise of data confidentiality, integrity, and availability—attackers can read, modify, or delete any data stored in the application's database.

Root Cause

The root cause of this vulnerability is improper input validation and the absence of parameterized queries (prepared statements) in the edit_tecnical_user.php file. User-controlled input is directly concatenated into SQL query strings without proper sanitization or escaping, allowing attackers to break out of the intended query context and inject malicious SQL statements.

Attack Vector

The attack vector is network-based, targeting the administrative endpoint of the Personnel Property Equipment System. An attacker can craft malicious HTTP requests to the /ppes/admin/edit_tecnical_user.php endpoint, injecting SQL payloads through vulnerable parameters. Since no authentication is required to exploit this vulnerability, any network-accessible deployment is at immediate risk.

The exploitation typically involves modifying input parameters to include SQL metacharacters and additional SQL commands. Common attack techniques include UNION-based injection for data extraction, time-based blind injection for enumeration, and stacked queries for data manipulation or database command execution.

For detailed technical information about this vulnerability, refer to the GitHub Bug Report Document.

Detection Methods for CVE-2026-26701

Indicators of Compromise

• Unusual SQL error messages in application logs referencing edit_tecnical_user.php
• HTTP requests to /ppes/admin/edit_tecnical_user.php containing SQL keywords such as UNION, SELECT, INSERT, UPDATE, DELETE, or --
• Database query logs showing unexpected queries originating from the application
• Evidence of data exfiltration or unauthorized database modifications

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block SQL injection patterns targeting the /ppes/admin/edit_tecnical_user.php endpoint
• Enable database query logging and monitor for anomalous query patterns including time-based delays, error-based extraction attempts, or UNION operations
• Implement intrusion detection signatures for HTTP requests containing SQL injection payloads
• Review web server access logs for repeated requests to the vulnerable endpoint with varying parameter values

Monitoring Recommendations

• Set up alerting for failed authentication attempts or unusual access patterns to the admin panel
• Monitor database performance metrics for unexpected query execution times that may indicate time-based blind SQL injection attempts
• Track outbound data transfers from database servers that could indicate data exfiltration
• Implement file integrity monitoring on critical application files to detect unauthorized modifications

How to Mitigate CVE-2026-26701

Immediate Actions Required

• Restrict network access to the /ppes/admin/edit_tecnical_user.php endpoint using firewall rules or access control lists
• Implement a Web Application Firewall (WAF) with SQL injection protection rules
• If the application is not critical, consider taking it offline until a patch is available
• Review database logs for signs of prior exploitation and assess potential data compromise

Patch Information

No official vendor patch is currently available for this vulnerability. Organizations using Personnel Property Equipment System v1.0 should monitor the vendor's channels for security updates. As an interim measure, consider implementing the workarounds listed below or consulting with a security professional to implement custom fixes.

For additional technical details, see the GitHub Bug Report Document.

Workarounds

• Implement network-level access restrictions to limit access to the vulnerable endpoint to trusted IP addresses only
• Deploy a reverse proxy or WAF with SQL injection detection capabilities in front of the application
• Manually patch the vulnerable PHP file by implementing parameterized queries using PDO or mysqli prepared statements
• Apply the principle of least privilege to the database user account used by the application to limit the impact of successful exploitation

# Example: Restrict access to vulnerable endpoint using Apache .htaccess
<Files "edit_tecnical_user.php">
    Order Deny,Allow
    Deny from all
    Allow from 192.168.1.0/24
</Files>