CVE-2026-19932 in Notice-System-Managent
Summary
by MITRE • 08/16/2026
A security flaw has been discovered in DefaultFuction Notice-System-Managent 2.0. This issue affects the function GroovyShell.evaluate of the file /execute of the component NoticeController. The manipulation results in code injection. The attack can be launched remotely. The exploit has been released to the public and may be used for attacks. The project confirms, that "it’s being processed".
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Analysis
by VulDB Data Team • 08/23/2026
This vulnerability represents a critical remote code execution flaw in the DefaultFunction Notice-System-Management 2.0 platform where the GroovyShell.evaluate method is improperly exposed through the NoticeController component. The vulnerability exists within the /execute endpoint and allows attackers to inject arbitrary code by manipulating input parameters that are directly passed to the Groovy scripting engine. This type of vulnerability falls under CWE-94, which specifically addresses "Improper Control of Generation of Code ('Code Injection')" and aligns with ATT&CK technique T1059.007 for scriptlets and command-line interface execution.
The technical implementation of this flaw stems from the insecure handling of user-supplied input within the NoticeController's execute method, where the GroovyShell.evaluate function processes unvalidated external data without proper sanitization or access controls. When an attacker sends malicious input to the /execute endpoint, the system directly evaluates this input as executable code rather than treating it as data, creating a path for arbitrary command execution on the affected system. This vulnerability is particularly dangerous because it enables remote exploitation without requiring authentication, making it highly attractive to threat actors.
The operational impact of this vulnerability extends beyond simple code injection, as successful exploitation can lead to complete system compromise including privilege escalation, data exfiltration, and persistent backdoor installation. Attackers can leverage this vulnerability to execute malicious scripts, establish command and control channels, or pivot to other systems within the network infrastructure. The fact that public exploits have been released significantly increases the risk surface and makes this vulnerability particularly dangerous for organizations running affected versions of the Notice-System-Management platform.
Organizations must implement immediate mitigations including restricting access to the vulnerable /execute endpoint through network segmentation, implementing proper input validation and sanitization mechanisms, and applying patches or hotfixes provided by the vendor. The security controls should include web application firewalls that can detect and block malicious payloads targeting the GroovyShell.evaluate function, along with monitoring for unusual execution patterns in system logs. Additionally, organizations should conduct thorough penetration testing to identify other potential injection points within the system and implement principle of least privilege access controls to minimize the impact if exploitation occurs. This vulnerability demonstrates the critical importance of proper input validation and secure coding practices when dealing with dynamic code evaluation mechanisms.