CVE-2026-23705 in FortiAnalyzer
Summary
by MITRE • 10/13/2026
An Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability [CWE-89] vulnerability in Fortinet FortiAnalyzer 7.6.0 through 7.6.4, FortiAnalyzer 7.4.0 through 7.4.7, FortiAnalyzer 7.2 all versions, FortiManager 7.6.0 through 7.6.4, FortiManager 7.4.0 through 7.4.6, FortiManager 7.2 all versions may allow a low privileged user to execute arbitrary commands via crafted requests.
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Analysis
by VulDB Data Team • 10/13/2026
The identified vulnerability represents a critical security flaw within the web management interfaces of several major Fortinet network security appliances, specifically affecting various release branches of FortiAnalyzer and FortiManager software. This issue is classified as an Improper Neutralization of Special Elements used in an SQL Command, commonly known as SQL Injection, which corresponds to CWE-89 in the Common Weakness Enumeration directory. The vulnerability stems from insufficient validation or sanitization of user-supplied input within specific API endpoints or web forms that interact with the underlying database management system. When a low privileged user submits crafted requests containing maliciously constructed SQL syntax, the application fails to properly escape these special characters before incorporating them into dynamic SQL queries. This failure allows the attacker's input to be interpreted as executable code by the database engine rather than as literal data, fundamentally breaking the intended separation between command and data.
The operational impact of this vulnerability is severe due to its potential for remote code execution without authentication privileges typically required for administrative access. Although the flaw requires a low privileged user account, such accounts are often more readily obtainable through credential stuffing, phishing, or default configuration errors in enterprise environments where multiple users have varying levels of system access. By exploiting this SQL injection vector, an attacker can manipulate backend database queries to extract sensitive information, modify existing records, or potentially escalate privileges by leveraging the database server's operating system capabilities. In many modern web application architectures, particularly those involving Fortinet products that integrate with external databases for logging and management data storage, successful exploitation of CWE-89 can lead directly to arbitrary command execution on the host machine running the database service. This effectively compromises the integrity, confidentiality, and availability of the security appliance itself, turning a defensive tool into an attack vector against the broader network infrastructure it is meant to protect.
From a threat intelligence perspective, this vulnerability aligns with MITRE ATT&CK techniques related to SQL Injection for initial access or privilege escalation, specifically mapping to T1190 in the Enterprise matrix if used as an entry point, and potentially T1505.003 (Web Shell) or T1059 Command and Scripting Interpreter if command execution is achieved via database extensions like xp_cmdshell on Microsoft SQL Server environments often associated with such appliances. The ability to execute arbitrary commands means that attackers can install backdoors, exfiltrate logs containing sensitive network traffic analysis data, pivot into internal networks by using the compromised appliance as a foothold, or disrupt security monitoring capabilities by deleting or altering log entries stored in FortiAnalyzer databases. This undermines the core value proposition of these products, which is to provide accurate visibility and control over organizational IT assets.
Mitigation strategies must prioritize immediate patching against the latest vendor-released updates that address this specific input validation failure. For organizations unable to apply patches immediately due to operational constraints, network-level controls should be implemented to restrict access to the management interfaces of FortiAnalyzer and FortiManager systems from untrusted networks or users without explicit authorization. Web Application Firewalls (WAFs) can provide a temporary layer of defense by detecting and blocking common SQL injection patterns in HTTP requests targeting these specific endpoints. Additionally, enforcing strict least-privilege principles for all user accounts accessing the management interface reduces the attack surface significantly, as it limits the potential impact even if an exploitation attempt succeeds. Regular security audits focusing on input validation practices within custom scripts or integrations connected to these appliances are also recommended to prevent similar flaws from being introduced in future updates or third-party modules.