CVE-2025-13571: Simple Cafe Ordering System SQLi Flaw

CVE-2025-13571 Overview

CVE-2025-13571 is a SQL injection vulnerability in code-projects Simple Food Ordering System 1.0 (also tracked as Fabian Simple Cafe Ordering System). The flaw resides in the /listorder.php script, where the ID parameter is passed to a backend SQL query without proper sanitization. Remote attackers with low-level privileges can manipulate this parameter to inject arbitrary SQL statements. The exploit details have been publicly disclosed, increasing the likelihood of opportunistic abuse against exposed instances.

Critical Impact
Authenticated remote attackers can inject SQL through the ID parameter of /listorder.php, potentially exposing or modifying order data stored in the application database.

Affected Products

code-projects Simple Food Ordering System 1.0
Fabian Simple Cafe Ordering System 1.0
Deployments referencing the vulnerable /listorder.php endpoint

Discovery Timeline

2025-11-23 - CVE-2025-13571 published to NVD
2026-04-29 - Last updated in NVD database

Technical Details for CVE-2025-13571

Vulnerability Analysis

The vulnerability is classified under [CWE-89] (Improper Neutralization of Special Elements used in an SQL Command) and [CWE-74] (Improper Neutralization of Special Elements in Output Used by a Downstream Component). The /listorder.php script accepts an ID value from the HTTP request and concatenates it directly into a SQL statement. Because the application does not use parameterized queries or input validation, attacker-controlled SQL syntax reaches the database engine. Successful exploitation can disclose order records, customer details, and credentials stored in adjacent tables.

Root Cause

The root cause is unsafe string concatenation of the ID request parameter into a SQL query inside /listorder.php. The application does not bind parameters or filter metacharacters such as single quotes, comments, or UNION operators. As a result, the database executes whatever syntax the attacker supplies.

Attack Vector

The attack is launched remotely over the network against the web application. The CVSS 4.0 vector indicates that low-privilege authentication is required and no user interaction is needed. An attacker submits a crafted HTTP request to /listorder.php?ID=<payload> with SQL syntax appended to the identifier. Typical payloads use UNION SELECT statements or boolean-based blind techniques to extract data row by row.

No verified proof-of-concept code is referenced in the advisory. Public disclosure has occurred through the GitHub Issue Tracker and VulDB entry #333335.

Detection Methods for CVE-2025-13571

Indicators of Compromise

HTTP requests to /listorder.php containing SQL metacharacters such as ', --, UNION, SLEEP(, or INFORMATION_SCHEMA in the ID parameter.
Web server access logs showing repeated requests to /listorder.php with progressively varying ID values, indicative of automated injection tooling.
Unexpected database errors or slow query log entries originating from the Simple Food Ordering System backend.

Detection Strategies

Deploy web application firewall rules that flag SQL syntax in the ID parameter of /listorder.php.
Inspect database query logs for queries against order tables that contain UNION clauses or comment terminators outside of normal application behavior.
Correlate authentication events with subsequent SQL injection probes to identify abuse from low-privilege accounts.

Monitoring Recommendations

Enable verbose logging on the PHP application and the underlying MySQL or MariaDB instance to capture full query strings.
Forward web and database telemetry to a centralized analytics platform with normalized schemas such as OCSF for cross-source correlation.
Alert on outbound data transfer spikes from the database host, which can indicate bulk extraction following successful injection.

How to Mitigate CVE-2025-13571

Immediate Actions Required

Restrict network exposure of the Simple Food Ordering System to trusted networks until a fix is applied.
Audit all accounts and revoke unnecessary low-privilege application users that could be abused to reach /listorder.php.
Review database logs for evidence of prior exploitation, focusing on queries against order, customer, and user tables.

Patch Information

No vendor patch is referenced in the NVD entry or the linked advisories. Administrators should monitor the Code Projects Resource Hub and the GitHub Issue Tracker for fixes. In the absence of an official update, replace concatenated SQL in /listorder.php with prepared statements using PDO or mysqli parameter binding.

Workarounds

Place the application behind a web application firewall with rules that block SQL injection patterns targeting the ID parameter.
Modify /listorder.php locally to validate that ID is a positive integer before use, rejecting any other input.
Enforce least-privilege database accounts so the web application cannot read tables outside its required scope.

bash

# Example PHP fix using prepared statements
# Replace concatenated query in /listorder.php
$id = filter_input(INPUT_GET, 'ID', FILTER_VALIDATE_INT);
if ($id === false || $id === null) {
    http_response_code(400);
    exit('Invalid ID');
}
$stmt = $conn->prepare('SELECT * FROM orders WHERE id = ?');
$stmt->bind_param('i', $id);
$stmt->execute();