CVE-2026-76785: Mini-Inventory System SQLi Vulnerability

CVE-2026-76785 Overview

CVE-2026-76785 is a SQL injection vulnerability in amirsanni Mini-Inventory-and-Sales-Management-System version 0.1. The flaw resides in the Transaction::getAll function within application/models/Transaction.php. Attackers manipulate the orderBy or orderFormat arguments to inject arbitrary SQL statements. The vulnerability is remotely exploitable and requires low-privilege authentication. A public exploit has been released, increasing the risk of opportunistic attacks. The project maintainer was notified through an issue report but has not yet responded. This weakness maps to [CWE-74] (Improper Neutralization of Special Elements in Output).

Critical Impact
Authenticated remote attackers can execute arbitrary SQL queries against the backend database, leading to unauthorized data access, modification, or deletion within the inventory and sales management system.

Affected Products

amirsanni Mini-Inventory-and-Sales-Management-System 0.1
Component: application/models/Transaction.php
Function: Transaction::getAll (parameters orderBy and orderFormat)

Discovery Timeline

2026-08-20 - CVE CVE-2026-76785 published to NVD
2026-08-20 - Last updated in NVD database

Technical Details for CVE-2026-76785

Vulnerability Analysis

The vulnerability exists in the Transaction::getAll method of the Mini-Inventory-and-Sales-Management-System PHP application. The function accepts user-controlled input via the orderBy and orderFormat parameters and incorporates them into a SQL query without proper sanitization or parameterization. Because these parameters typically control ORDER BY clauses, they cannot be safely bound as prepared-statement placeholders, making them a common source of injection when developers fail to whitelist acceptable values.

Successful exploitation allows an authenticated attacker to append arbitrary SQL syntax. This can be leveraged to extract confidential records from the transactions table, enumerate database schema, or tamper with sales and inventory data. Because a public exploit exists, defenders should assume that automated scanners will identify vulnerable deployments.

Root Cause

The root cause is improper neutralization of special elements passed through the orderBy and orderFormat arguments. The application concatenates these values directly into a SQL statement rather than validating them against an allowlist of column names and sort directions. This design flaw is characteristic of [CWE-74] injection weaknesses.

Attack Vector

The attack vector is network-based and requires low-level privileges within the application. An authenticated attacker sends a crafted HTTP request that reaches the transaction listing endpoint, supplying malicious payloads in the orderBy or orderFormat request parameters. No user interaction is required. Refer to the GitHub Issue #101 and VulDB CVE-2026-76785 advisory for technical details.

Detection Methods for CVE-2026-76785

Indicators of Compromise

HTTP requests to transaction listing endpoints containing SQL metacharacters such as single quotes, UNION, SLEEP(, or comment sequences within the orderBy or orderFormat parameters.
Unexpected database errors in application logs referencing the Transaction model or ORDER BY parsing failures.
Anomalous outbound database queries returning unusually large result sets during transaction browsing operations.

Detection Strategies

Deploy a web application firewall (WAF) rule that inspects orderBy and orderFormat parameters for SQL syntax and known injection payloads.
Enable verbose query logging on the backend database and alert on syntactically unusual ORDER BY clauses.
Correlate authenticated session activity with SQL error responses to identify accounts probing the vulnerable function.

Monitoring Recommendations

Monitor application access logs for repeated requests to the transaction endpoint from a single session with varying parameter payloads.
Track database performance metrics for query anomalies such as long-running or high-row-count SELECTs originating from the inventory application.
Review authentication logs for low-privilege accounts exhibiting reconnaissance behavior against the affected endpoint.

How to Mitigate CVE-2026-76785

Immediate Actions Required

Restrict access to the Mini-Inventory-and-Sales-Management-System application to trusted networks until a fix is available.
Audit user accounts and revoke unnecessary privileges to reduce the pool of attackers able to authenticate.
Deploy WAF rules that reject requests containing SQL metacharacters in the orderBy and orderFormat parameters.

Patch Information

No official patch is available at the time of publication. According to the advisory, the project maintainer was informed through an issue report but has not yet responded. Monitor the GitHub Project Repository and GitHub Issue #101 for updates.

Workarounds

Modify application/models/Transaction.php to validate orderBy and orderFormat against a strict allowlist of column names and the values ASC or DESC before use in a SQL query.
Place the application behind a reverse proxy that filters or normalizes query string parameters supplied to the transaction endpoint.
If the deployment is non-essential, take the application offline until a vendor-supplied fix is released.

bash

# Example allowlist validation pattern (PHP)
$allowedColumns = ['id', 'date', 'amount', 'customer'];
$allowedFormats = ['ASC', 'DESC'];

$orderBy = in_array($_GET['orderBy'], $allowedColumns, true)
    ? $_GET['orderBy']
    : 'id';

$orderFormat = in_array(strtoupper($_GET['orderFormat']), $allowedFormats, true)
    ? strtoupper($_GET['orderFormat'])
    : 'ASC';