CVE-2026-1476
Published: 27 January 2026
Summary
CVE-2026-1476 is a critical-severity SQL Injection (CWE-89) vulnerability in Quatuor Evaluacion De Desempeno. Its CVSS base score is 9.3 (Critical).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 24.4th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 RA-5 (Vulnerability Monitoring and Scanning) and SI-10 (Information Input Validation).
Deeper analysis
CVE-2026-1476 is an out-of-band SQL injection (OOB SQLi) vulnerability, classified under CWE-89, affecting the Performance Evaluation (EDD) application developed by Gabinete Técnico de Programación. The flaw resides in the 'Id_usuario' parameter within the '/evaluacion_acciones_ver_auto.aspx' endpoint. It has a CVSS v3.1 base score of 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N), indicating high confidentiality impact with no requirements for privileges or user interaction. The vulnerability was published on 2026-01-27.
A remote, unauthenticated attacker can exploit this vulnerability over the network with low complexity to extract sensitive information from the application's database. Exploitation leverages out-of-band techniques, where data is exfiltrated through external channels rather than directly via the application's responses, thereby compromising the confidentiality of stored information without affecting integrity or availability.
Mitigation details and further advisories are provided by INCIBE-CERT at https://www.incibe.es/en/incibe-cert/notices/aviso/out-band-sql-injection-quatuor-performance-evaluation.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-4748
- 🇪🇸 INCIBE: www.incibe.es
Vulnerability details
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…
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the database through external channels, without the affected application returning the data directly, compromising the confidentiality of the stored information.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Direct remote exploitation of public-facing web app via SQLi (T1190) enables unauthenticated database data access/exfiltration (T1213.006).
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly prevents the out-of-band SQL injection by requiring validation of the 'Id_usuario' parameter to block malicious SQL payloads.
Requires timely remediation of the specific SQL injection flaw in the EDD application to eliminate the vulnerability.
Provides vulnerability scanning to identify SQL injection issues like CVE-2026-1476 and ensures their remediation or mitigation.