Php SQL Injection (CVE-2026-26713)

Overview

A critical security vulnerability has been identified in the code-projects Simple Food Order System version 1.0. The flaw is an SQL Injection (SQLi) vulnerability located in the /food/routers/cancel-order.php script. This vulnerability is rated as CRITICAL with a CVSS score of 9.8, indicating a severe risk to affected systems.

Vulnerability Explanation

In simple terms, SQL Injection allows an attacker to interfere with the queries an application makes to its database. In this specific case, the cancel-order.php endpoint does not properly validate or sanitize user-supplied input before using it in an SQL query. An attacker can craft malicious input-often through order ID parameters-that tricks the system into executing unintended commands on the database. This gives the attacker direct access to read, modify, or delete data stored within it.

Potential Impact

The impact of this vulnerability is severe. A successful exploit could allow an unauthenticated attacker to:

• Steal Sensitive Data: Extract all data from the application’s database, including customer personal information, order details, and potentially administrator credentials.
• Modify or Destroy Data: Alter, corrupt, or delete database contents, disrupting business operations.
• Gain Administrative Control: In some scenarios, SQL Injection can be used to bypass login mechanisms or execute system commands, leading to a full compromise of the underlying server.

Any website running the unpatched v1.0 of this system is at immediate risk of data breach and service disruption.

Remediation and Mitigation

There is no official patch from the vendor at this time. The following actions are urgently recommended:

1. Immediate Mitigation: If the system must remain online, implement a Web Application Firewall (WAF) with rules specifically tuned to block SQL injection attacks. This is a temporary containment measure, not a fix.
2. Apply Input Validation and Parameterized Queries: The permanent solution requires code modification. All user inputs in cancel-order.php must be strictly validated. Most importantly, the database query logic must be rewritten to use parameterized queries (prepared statements). This method separates SQL code from data, preventing malicious input from being interpreted as commands.
3. Investigate and Audit: Assume your system may have been compromised. Review database and server logs for suspicious activity around the vulnerable endpoint. Check for unauthorized data access or new, unknown user accounts.
4. Long-term Action: Consider replacing this unsupported software with a maintained solution from a reputable vendor. If continuing use is necessary, engage a security professional to conduct a full code audit for similar vulnerabilities in other components.

Note: Simply hiding or disabling the endpoint is insufficient, as the vulnerable code may still be reachable through other means. The core code must be corrected.