CVE-2026-114252: Sales-and-Inventory-System SQL Injection

CVE-2026-114252 is a SQL injection vulnerability in itsourcecode Sales-and-Inventory-System affecting the cust_searchfrm.php file. Attackers can exploit this flaw remotely to manipulate database queries. This article covers technical details, impact assessment, and recommended mitigation strategies.

CVE-2026-114252 Overview

CVE-2026-114252 is a SQL injection vulnerability in the itsourcecode Sales-and-Inventory-System, affecting commits up to 0a3c45a78aaff3601b8cf9ce8ba82ff5c345caac. The flaw resides in the /pages/cust_searchfrm.php script, where the ID parameter is passed to database queries without sanitization. Attackers can inject arbitrary SQL statements remotely over the network. The project follows a rolling release model, so no explicit affected or fixed version is published. A public exploit is available, and the maintainers had not responded to the issue report at the time of disclosure. The weakness is classified under CWE-74: Improper Neutralization of Special Elements in Output.

Critical Impact
Authenticated remote attackers can manipulate the ID parameter in /pages/cust_searchfrm.php to read, modify, or delete backend database records.

Affected Products

itsourcecode Sales-and-Inventory-System (rolling release, up to commit 0a3c45a78aaff3601b8cf9ce8ba82ff5c345caac)
Vulnerable file: /pages/cust_searchfrm.php
Vulnerable parameter: ID

Discovery Timeline

2026-10-21 - CVE-2026-114252 published to NVD
2026-10-21 - Last updated in NVD database

Technical Details for CVE-2026-114252

Vulnerability Analysis

The vulnerability is a classic SQL injection in the customer search form of the Sales-and-Inventory-System PHP application. The cust_searchfrm.php endpoint reads the ID HTTP parameter and concatenates it into a SQL query without parameterization or input validation. Because the application is distributed through a rolling release on GitHub, there is no versioned patch to track. The maintainer has not acknowledged the reported issue, leaving deployments exposed. Public proof-of-concept information is referenced in the VulDB Vulnerability Details entry and the GitHub Issue Discussion.

Root Cause

The root cause is improper neutralization of special characters in a SQL query [CWE-74]. The ID request parameter is interpolated directly into a database query string, allowing operators such as UNION, OR, and comment sequences to alter query semantics. The application does not use prepared statements or parameterized queries for this request path.

Attack Vector

An attacker with low-privilege access to the web application can send a crafted HTTP request to /pages/cust_searchfrm.php with a malicious ID value. The request is remotely initiated without user interaction. Successful exploitation can disclose customer and inventory data, modify records, or support follow-on attacks such as authentication bypass through boolean or UNION-based injection techniques.

No verified exploitation code is reproduced here. Refer to the VulDB CVE Report for technical details on the public exploit.

Detection Methods for CVE-2026-114252

Indicators of Compromise

HTTP requests to /pages/cust_searchfrm.php containing SQL metacharacters such as ', --, UNION, SLEEP(, or OR 1=1 in the ID parameter.
Unusual database error messages or 500 responses returned from cust_searchfrm.php.
Spikes in response latency correlated with time-based SQL injection payloads targeting the search endpoint.

Detection Strategies

Deploy web application firewall rules that inspect query strings for SQL injection signatures on the vulnerable path.
Enable database query logging and alert on malformed statements originating from the application user used by the Sales-and-Inventory-System.
Correlate web server access logs with database audit logs to identify request-to-query injection patterns.

Monitoring Recommendations

Monitor for high-volume access to /pages/cust_searchfrm.php from a single source IP.
Alert on outbound data transfers from the application database that exceed baseline search response sizes.
Track access to sensitive customer tables outside of normal application workflows.

How to Mitigate CVE-2026-114252

Immediate Actions Required

Restrict network access to the Sales-and-Inventory-System to trusted users and internal networks until a fix is validated.
Place a web application firewall in front of the application with SQL injection rules enforced on /pages/cust_searchfrm.php.
Audit recent access logs for exploitation attempts and review customer database records for unauthorized modifications.

Patch Information

No official patch is available. The project uses a rolling release model and, according to the CVE record, had not responded to the issue report at the time of publication. Monitor the GitHub Issue Discussion and IT Source Code Resource for updates.

Workarounds

Modify cust_searchfrm.php to use parameterized queries (for example, PDO prepared statements) and cast the ID input to an integer before use.
Apply server-side input validation that rejects any ID value containing non-numeric characters.
Reduce database account privileges so the application user cannot modify schema or access unrelated tables.

bash

# Example PHP PDO parameterization pattern for the ID parameter
# $pdo = new PDO($dsn, $user, $pass);
# $stmt = $pdo->prepare('SELECT * FROM customers WHERE id = :id');
# $stmt->bindValue(':id', (int)$_GET['ID'], PDO::PARAM_INT);
# $stmt->execute();