CVE-2026-20327 in Unified Intelligence Center
Summary
by MITRE • 08/19/2026
A vulnerability in the web-based management interface of Cisco Unified Intelligence Center could allow an authenticated, local attacker to perform a blind SQL injection attack against an affected device.
This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted request to the web-based management interface. A successful exploit could allow the attacker to read the contents of the internal database of an affected device. To exploit this vulnerability, the attacker must have valid user credentials on the affected device.
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Analysis
by VulDB Data Team • 08/19/2026
The Cisco Unified Intelligence Center platform contains a critical security flaw within its web-based management interface that permits blind SQL injection attacks by authenticated local attackers. This vulnerability stems from insufficient validation of user-supplied input data processed by the application backend. When an attacker sends a crafted request to the management interface, the system fails to properly sanitize or parameterize specific inputs before incorporating them into database queries. Because the attack vector is classified as blind SQL injection, the exploitation does not rely on direct error messages or visible output in the response body. Instead, the attacker must infer data extraction by observing subtle differences in application behavior, such as response times or conditional logic outcomes, which allows for the systematic reconstruction of sensitive information stored within the internal database without triggering obvious alerts or displaying raw query results to the user interface.
The operational impact of this vulnerability is severe due to its potential for unauthorized data exfiltration and subsequent privilege escalation. A successful exploit enables an attacker with valid credentials on the affected device to read the contents of the internal database, which typically contains configuration details, user account information, session tokens, and potentially other sensitive organizational data. The requirement for valid user credentials means that this vulnerability is primarily a threat from insider actors or external attackers who have already compromised legitimate accounts through phishing, credential stuffing, or other initial access techniques. Once inside, the ability to perform blind SQL injection provides a powerful mechanism for further reconnaissance and lateral movement within the network infrastructure managed by Cisco Unified Intelligence Center.
From a technical classification perspective, this flaw aligns with CWE-89 Improper Neutralization of Special Elements used in an SQL Command, specifically highlighting the failure to validate user-supplied input before use in dynamic query construction. The exploitation technique corresponds to ATT&CK T1059 Command and Scripting Interpreter via database commands or data exfiltration techniques such as Data from Information Repositories (T1213) where structured data is extracted through indirect means. The blind nature of the injection also relates to timing-based side-channel attacks, which are often categorized under OS command injection variants in broader threat models due to their reliance on behavioral inference rather than direct output display.
Mitigation strategies should focus primarily on strict input validation and parameterized query implementation within the application codebase responsible for handling management interface requests. Developers must ensure that all user-supplied inputs are treated as data rather than executable code, utilizing prepared statements or stored procedures to separate SQL logic from data values. Additionally, implementing robust web application firewalls can help detect and block common SQL injection patterns before they reach the backend database engine. For administrators of affected systems, it is critical to enforce strong authentication policies, including multi-factor authentication where supported, to reduce the risk of credential compromise that serves as a prerequisite for this attack vector. Regular security audits and penetration testing focused on web application interfaces can also help identify similar input validation weaknesses before they are exploited in production environments.