CVE-2018-25191 in Facturation System
Summary
by MITRE • 03/06/2026
Facturation System 1.0 contains an SQL injection vulnerability that allows authenticated attackers to execute arbitrary SQL queries by injecting malicious code through the 'mod_id' parameter. Attackers can send POST requests to the editar_producto.php endpoint with crafted SQL payloads in the mod_id parameter to extract sensitive database information including usernames, database names, and version details.
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Analysis
by VulDB Data Team • 03/06/2026
The vulnerability identified as CVE-2018-25191 affects Facturation System version 1.0 and represents a critical SQL injection flaw that undermines the application's database security. This vulnerability exists within the application's input validation mechanisms, specifically in how the system processes the 'mod_id' parameter submitted through POST requests to the editar_producto.php endpoint. The flaw allows authenticated attackers to manipulate the application's database queries by injecting malicious SQL code, thereby bypassing normal authentication and authorization controls. The vulnerability is particularly concerning because it does not require elevated privileges to exploit, as the attacker only needs valid authentication credentials to access the vulnerable functionality.
The technical implementation of this vulnerability stems from improper parameter handling and inadequate input sanitization within the Facturation System's backend processing logic. When the application receives a POST request containing the mod_id parameter, it directly incorporates this user-supplied data into SQL query construction without proper escaping or parameterization. This creates an environment where attackers can craft malicious payloads that alter the intended query execution flow. The vulnerability maps to CWE-89 which specifically addresses SQL injection flaws in software applications, where insufficient validation of user inputs allows attackers to manipulate database queries through malicious input. The attack vector operates through the web application's HTTP POST interface, where the mod_id parameter serves as the primary injection point.
The operational impact of this vulnerability extends beyond simple data extraction to encompass potential system compromise and data breach scenarios. An attacker with valid credentials can leverage this vulnerability to extract sensitive information including database usernames, database schema details, and version information that provides insights into the underlying database infrastructure. This intelligence can be used to plan more sophisticated attacks targeting specific database vulnerabilities or to map out the overall system architecture. The vulnerability also enables attackers to potentially modify or delete database records, depending on the privileges associated with the authenticated user account. The risk assessment aligns with ATT&CK technique T1071.004 which covers application layer protocol manipulation, and T1046 which addresses network service scanning that can be facilitated by information gathering through SQL injection.
Mitigation strategies for this vulnerability must address both immediate remediation and long-term architectural improvements to prevent similar issues. The primary fix involves implementing proper input validation and parameterized queries throughout the application's database interaction points. All user-supplied inputs, particularly those used in SQL query construction, must be properly escaped or parameterized to prevent malicious code injection. The application should enforce strict input validation that rejects or sanitizes any input containing SQL metacharacters or keywords. Additionally, implementing proper access controls and privilege management ensures that even if an attacker exploits this vulnerability, their ability to perform destructive operations remains limited. The system should also incorporate comprehensive logging and monitoring of database access patterns to detect anomalous activities that may indicate exploitation attempts. Regular security assessments and code reviews should be conducted to identify and remediate similar vulnerabilities across the application's codebase.