CVE-2026-92196 in Foglight for Databases
Summary
by MITRE • 11/04/2026
Quest Foglight for Databases renderTemplateString Server-Side Template Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Quest Foglight for Databases. Authentication is required to exploit this vulnerability.
The specific flaw exists within the renderTemplateString method. The issue results from the lack of proper validation of a user-supplied string before processing it with the template engine. An attacker can leverage this vulnerability to execute code in the context of SYSTEM. Was ZDI-CAN-29889.
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Analysis
by VulDB Data Team • 11/04/2026
The identified security flaw resides within Quest Foglight for Databases, specifically affecting the renderTemplateString method which is responsible for processing dynamic content using a server-side template engine. This vulnerability represents a classic instance of Server-Side Template Injection, where an application fails to adequately sanitize user-supplied input before passing it to a templating system that interprets and executes code within its own context. The root cause lies in the absence of rigorous validation or escaping mechanisms for strings provided by users prior to their integration into template structures. When such unsanitized data is processed, the template engine does not merely render static text but actively evaluates embedded expressions as executable commands. This architectural oversight allows an attacker who can supply maliciously crafted input to inject arbitrary code snippets that are subsequently executed on the host system with elevated privileges.
From a technical perspective, this vulnerability falls under CWE-94, commonly known as Improper Control of Generation of Code or Script, specifically Server-Side Template Injection. The exploitation vector requires authentication, meaning an attacker must first possess valid credentials to interact with the Foglight interface and submit requests containing the malicious template payloads. Once authenticated, the attacker can manipulate the renderTemplateString function by injecting syntax specific to the underlying templating engine used by Quest Foglight for Databases. Because the application processes these templates on behalf of the user without sufficient isolation or sandboxing, the injected code executes within the security context of the running process. In many enterprise deployments, this service runs with high-level privileges, potentially equivalent to SYSTEM level access on Windows environments or root-equivalent permissions on Linux systems. This privilege escalation capability transforms a standard injection flaw into a critical remote code execution vulnerability that can lead to complete compromise of the underlying infrastructure hosting the database monitoring solution.
The operational impact of exploiting this vulnerability is severe and multifaceted. An authenticated attacker with successful access to the renderTemplateString endpoint can achieve arbitrary command execution on the server operating at SYSTEM privileges. This level of control enables the adversary to install malware, create new administrative accounts, exfiltrate sensitive data stored within or accessible by the Foglight database monitoring system, and pivot further into the internal network. Since Quest Foglight for Databases is often deployed as a central component in enterprise IT environments responsible for monitoring critical database infrastructure, compromising this service provides attackers with significant visibility into other systems and potential lateral movement opportunities. The ability to execute code at such high privilege levels effectively neutralizes many traditional defense-in-depth strategies that rely on process isolation or limited user permissions within the application layer.
In terms of threat modeling and adversary behavior, this vulnerability aligns closely with MITRE ATT&CK techniques related to Command and Scripting Interpreter execution via server-side template injection. Attackers typically leverage such flaws during the initial access or privilege escalation phases of an intrusion campaign. The requirement for authentication places this attack within the context of compromised credentials or insider threats, although it also highlights risks associated with weak credential management practices if default or easily guessable passwords are in use. Defenders should recognize that even authenticated vulnerabilities can pose existential risks to application integrity when they allow code execution at elevated privilege levels.
Mitigation strategies must focus on both immediate remediation and long-term architectural improvements. The primary defense is the implementation of vendor-provided patches or updates that address the validation logic within the renderTemplateString method. Organizations should prioritize applying these security fixes as soon as they become available from Quest Software to close the execution gap. In addition to patching, input validation must be enforced rigorously at all entry points where user data interacts with template engines. This includes implementing allow-lists for expected inputs and escaping or encoding special characters that could be interpreted as code by the templating system. Furthermore, adopting a principle of least privilege is critical; ensuring that the Foglight service runs under a dedicated account with minimal permissions can limit the blast radius if an exploitation attempt succeeds. Network segmentation should also be reviewed to restrict access to the Foglight management interface only from authorized administrative workstations, thereby reducing the attack surface available to potential adversaries seeking authenticated entry points.