CVE-2026-1476 in Evaluación de Desempeño
Summary
by MITRE • 01/27/2026
An out-of-band SQL injection vulnerability (OOB SQLi) has been detected in the Performance Evaluation (EDD) application developed by Gabinete Técnico de Programación. Exploiting this vulnerability in the parameter 'Id_usuario' in ‘/evaluacion_acciones_ver_auto.aspx’, could allow an attacker to extract sensitive information from the database through external channels, without the affected application returning the data directly, compromising the confidentiality of the stored information.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 02/11/2026
The CVE-2026-1476 vulnerability represents a sophisticated out-of-band sql injection flaw within the Performance Evaluation application developed by Gabinete Técnico de Programación. This vulnerability specifically targets the Id_usuario parameter within the /evaluacion_acciones_ver_auto.aspx endpoint, creating a critical security risk that enables attackers to bypass traditional input validation mechanisms. The out-of-band nature of this vulnerability means that attackers can extract data from the database through external communication channels rather than relying on direct response data retrieval, making detection more challenging and the attack vector more insidious. This type of vulnerability falls under the CWE-648 category of improper access control and specifically aligns with ATT&CK technique T1213.002 for data from information repositories, as it allows unauthorized data extraction through database manipulation.
The technical implementation of this vulnerability exploits the application's failure to properly sanitize or validate user input in the Id_usuario parameter. When an attacker submits malicious input through this parameter, the application constructs sql queries without adequate input filtering or parameterization, allowing the attacker to inject malicious sql commands. The out-of-band aspect of this vulnerability enables attackers to exfiltrate data through secondary channels such as dns requests, http requests to attacker-controlled servers, or other external communication methods. This approach allows the attacker to extract database contents without the application directly returning the sensitive information in the http response, which makes traditional intrusion detection systems less effective at identifying the attack. The vulnerability demonstrates a fundamental flaw in input validation and sql query construction practices within the application's backend processing logic.
The operational impact of CVE-2026-1476 extends beyond simple data theft, as it represents a significant compromise of system confidentiality and potentially exposes sensitive user information, performance evaluations, and related data. Attackers can leverage this vulnerability to extract complete database schemas, user credentials, performance metrics, and other confidential information stored within the application's database. The out-of-band nature of the attack complicates forensic analysis and incident response efforts, as network traffic patterns may not clearly indicate malicious activity during the data extraction phase. This vulnerability could enable attackers to gain insights into organizational performance evaluation processes, user behavior patterns, and potentially sensitive personal or professional data that could be used for further attacks or malicious purposes. The impact on the organization's security posture is substantial, as this vulnerability could serve as a foothold for additional attacks within the network infrastructure.
Mitigation strategies for CVE-2026-1476 should focus on implementing robust input validation, parameterized queries, and proper sql injection prevention techniques throughout the application codebase. The primary remediation involves ensuring that all user inputs, particularly the Id_usuario parameter, are properly sanitized and validated before being incorporated into sql queries. Organizations should implement prepared statements or parameterized queries to prevent sql injection attacks, as this approach separates sql code from data and eliminates the possibility of malicious sql code execution. Network-level protections should include monitoring for unusual external communication patterns, implementing web application firewalls, and establishing proper database access controls to limit the potential damage from successful exploitation. Additionally, regular security testing including sql injection vulnerability assessments should be conducted to identify and remediate similar vulnerabilities throughout the application lifecycle. The implementation of proper logging and monitoring mechanisms will help detect attempts to exploit this vulnerability and provide valuable forensic data for incident response activities.