Description

A vulnerability was detected in itsourcecode Sales and Inventory System 1.0. This affects an unknown part of the file /pages/cust_transac.php?action=add. The manipulation of the argument firstname results in sql injection. It is possible to launch the attack remotely. The exploit is now public and may be used.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "6.3",
  "pubDate": "2026-09-07T00:17:46.867Z",
  "pubdate": "2026-09-07T00:17:46.867Z",
  "executiveSummary": "A critical SQL injection vulnerability has been identified in the itsourcecode Sales and Inventory System 1.0. The vulnerability resides within the processing logic of the /pages/cust_transac.php file, specifically targeting the 'firstname' argument when the action parameter is set to 'add'.\nThis vulnerability allows an unauthenticated remote attacker to inject arbitrary SQL commands into the backend database queries. Successful exploitation enables unauthorized access to sensitive information, potential data exfiltration, or modification of the database structure. The risk is considered high, given that exploit code for this vulnerability is currently public, facilitating easy exploitation by malicious actors.\nAffected systems are those running version 1.0 of the itsourcecode Sales and Inventory System. Because the vulnerability is remotely exploitable without requiring prior authentication, it poses a significant threat to the confidentiality, integrity, and availability of the application's data. Organizations using this software should treat this as a high-priority security issue.",
  "technicalDetails": "The vulnerability is a classic SQL injection flaw stemming from improper neutralization of user-supplied input before it is incorporated into database queries. Within the /pages/cust_transac.php script, the application processes transaction data via an 'add' action. The 'firstname' parameter is passed to the server-side script and is inadequately sanitized, allowing an attacker to escape the intended SQL syntax.\nThe root cause is the usage of unsanitized input in SQL statements, which permits the injection of malicious SQL meta-characters. By injecting crafted payloads—such as single quotes, comment delimiters, or UNION statements—into the 'firstname' field, an attacker can manipulate the query logic. For instance, an attacker could terminate the intended query and append a secondary, malicious query, which the database engine will then execute with the privileges of the application's database user.\nThe attack flow begins with the adversary identifying the entry point at /pages/cust_transac.php?action=add. The attacker submits an HTTP request (typically POST or GET, depending on implementation) containing a malicious payload in the 'firstname' parameter. Upon processing this request, the backend script concatenates the malicious input directly into the database query string without using parameterized queries or prepared statements.\nThis allows the attacker to execute arbitrary SQL commands, potentially leading to unauthorized data retrieval from other tables (e.g., administrator credentials, user sessions, or inventory data), modification of existing records, or dropping tables to cause denial of service. The vulnerability is remotely exploitable over a network, and because it does not require authentication, the attack surface is broad. Post-exploitation impact varies depending on the database user permissions, but given the nature of inventory systems, the attacker may gain full read/write access to the application database.\nThis vulnerability represents a significant failure in the application's input validation layer, which is exacerbated by the lack of abstraction provided by prepared statements or object-relational mapping (ORM) with automated parameter binding."
}