CVE-2026-76990 in Simple Inventory System
Summary
by MITRE • 08/20/2026
A vulnerability has been found in code-projects Simple Inventory System 1.0. Affected by this issue is some unknown functionality of the file /delete.php. Such manipulation of the argument ID leads to sql injection. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.
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Analysis
by VulDB Data Team • 08/20/2026
The Simple Inventory System version 1.0 contains a critical security flaw within its administrative interface, specifically located in the file delete.php. This vulnerability manifests as an SQL Injection (SQLi) weakness that arises from improper input validation and sanitization practices when processing user-supplied data. The system fails to adequately filter or escape special characters within the ID argument passed via HTTP requests before incorporating it into backend database queries. Consequently, this allows attackers to manipulate the intended query structure by injecting malicious SQL code through the ID parameter. This type of flaw is a classic example of CWE-89 Improper Neutralization of Special Elements used in an SQL Command which represents one of the most prevalent and dangerous web application vulnerabilities identified in modern software development cycles.
The operational impact of this vulnerability is severe, as it enables remote attackers to execute arbitrary SQL commands against the underlying database without requiring prior authentication or valid credentials for certain administrative functions if access controls are also bypassed through other means. By exploiting this injection point, an attacker can potentially extract sensitive data such as user credentials, inventory details, and proprietary business information stored in the system's database. Furthermore, depending on the configuration of the Database Management System (DBMS), a skilled adversary might escalate privileges to perform write operations, modify existing records, or even execute operating system commands if specific DBMS features like xp_cmdshell are enabled. This aligns with ATT&CK technique T1059 Command and Scripting Interpreter where attackers use SQL injection as a vector to achieve initial access and subsequent data exfiltration or persistence within the target environment.
The fact that this exploit has been disclosed publicly significantly increases the risk profile for organizations still running version 1.0 of Simple Inventory System. Publicly available exploits lower the barrier to entry for less sophisticated threat actors, leading to a higher probability of automated scanning and exploitation attempts across internet-facing assets. The remote nature of the attack means that no physical proximity or local network access is required, allowing adversaries to target systems from anywhere with an internet connection. This widespread accessibility underscores the urgency for immediate remediation efforts to prevent potential data breaches and system compromise.
To mitigate this vulnerability, developers must implement parameterized queries or prepared statements when interacting with the database. This approach ensures that user input is treated strictly as data rather than executable code, effectively neutralizing injection attempts regardless of the content provided in the ID argument. Additionally, implementing strict input validation by whitelisting expected character sets and lengths for the ID field can provide an additional layer of defense against malformed inputs. It is also recommended to apply the principle of least privilege to database accounts used by the application, ensuring that even if injection occurs, the attacker cannot perform destructive operations such as dropping tables or accessing unrelated databases. Upgrading to a patched version of Simple Inventory System where these coding practices have been corrected remains the most effective long-term solution for securing the inventory management infrastructure against SQL injection attacks.