SQL Injection in Pizzafy E-Commerce System Exposes Order Data (CVE-2026-14713)

Overview

A high-severity SQL injection vulnerability has been identified in SourceCodester Pizzafy E-Commerce System version 1.0. The flaw exists in the AJAX order confirmation endpoint (/admin/ajax.php?action=confirm_order) where the ID parameter is passed directly into a SQL query without sanitization. A remote attacker can exploit this to execute arbitrary SQL commands against the application's database.

The vulnerability is tracked as CVE-2026-14713 with a CVSS base score of 7.3 (High). Notably, a public exploit has already been released, making this a priority remediation for any organization running this software.

Technical Details

The confirm_order AJAX handler retrieves an order record using a raw SQL query that concatenates the user-supplied ID value directly into the query string. The absence of prepared statements or input validation makes the endpoint trivially injectable.

Impact

Exploitation of CVE-2026-14713 could result in:

• Full database read access — an attacker can dump all tables, including customer PII, order histories, and payment references
• Data manipulation — order records can be altered or deleted, disrupting business operations
• Authentication bypass — depending on application logic, session tokens or admin credentials stored in the database can be extracted
• Potential lateral movement — in shared hosting environments, a database compromise may affect other co-hosted applications

The availability of a public proof-of-concept exploit significantly lowers the barrier to exploitation and increases the urgency of remediation.

Proof of Concept

Attackers can send a crafted POST request to the vulnerable endpoint:

POST /admin/ajax.php?action=confirm_order HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
 
id=1' OR '1'='1

Alternatively, time-based blind injection can confirm vulnerability without visible output:

id=1' AND SLEEP(5)--

Automated tools such as sqlmap can fully enumerate the database schema given network access to the endpoint.

Remediation

1. Parameterized queries — Replace all raw query string concatenation with PDO prepared statements. The confirm_order handler must bind the ID parameter safely before executing the query.
2. Admin authentication hardening — Even if exploitation requires an admin session, ensure admin accounts use strong credentials and MFA.
3. Input validation — Validate that ID is a positive integer before any database interaction (intval() or type casting in PHP).
4. WAF deployment — A web application firewall with SQLi signatures can block common attack patterns.
5. Upgrade or replace — As a SourceCodester demo/learning application, consider whether this software is appropriate for production use at all.

References

• NVD — CVE-2026-14713
• OWASP SQL Injection Prevention Cheat Sheet