CVE-2025-9234 in Scada-LTS
Summary
by MITRE • 08/20/2025
A vulnerability was detected in Scada-LTS up to 2.7.8.1. The affected element is an unknown function of the file maintenance_events.shtm. The manipulation of the argument Alias results in cross site scripting. The attack can be executed remotely. The exploit is now public and may be used.
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Analysis
by VulDB Data Team • 09/11/2025
CVE-2025-9234 represents a critical cross-site scripting vulnerability discovered in Scada-LTS versions up to 2.7.8.1, specifically within the maintenance_events.shtm file. This vulnerability stems from improper input validation in an unknown function that processes the Alias argument, creating a pathway for malicious code execution. The flaw allows attackers to inject arbitrary JavaScript code through the Alias parameter, which then executes in the context of other users' browsers when they view the affected page. The vulnerability's remote exploitability means that attackers can leverage this weakness without requiring physical access to the system, making it particularly dangerous in industrial control environments where SCADA systems manage critical infrastructure operations. The public availability of exploit code significantly increases the risk to organizations using vulnerable versions of Scada-LTS.
The technical implementation of this vulnerability aligns with CWE-79, which categorizes cross-site scripting flaws as weaknesses in web applications that allow attackers to inject client-side scripts into web pages viewed by other users. This particular flaw demonstrates how insufficient sanitization of user-supplied input can lead to complete browser compromise, potentially enabling attackers to access sensitive operational data, manipulate control systems, or execute unauthorized commands within the SCADA environment. The attack vector through the Alias argument suggests that the vulnerability exists in a function designed to handle system alias names or identifiers, where proper validation and output encoding mechanisms are absent or inadequate.
The operational impact of CVE-2025-9234 extends beyond traditional web application security concerns due to the industrial nature of SCADA systems. Organizations utilizing Scada-LTS for critical infrastructure management face significant risks including potential system compromise, unauthorized access to operational controls, data exfiltration, and disruption of critical processes. The vulnerability could enable attackers to gain persistent access to industrial control systems, potentially leading to cascading failures in critical infrastructure operations. This risk is compounded by the fact that SCADA environments often operate with limited security monitoring and may lack the sophisticated threat detection capabilities found in traditional IT environments, making exploitation more likely to go undetected.
Organizations should immediately implement multiple layers of mitigation strategies to address this vulnerability. The primary recommendation involves upgrading to the latest version of Scada-LTS where the vulnerability has been patched, as this represents the most effective long-term solution. Additionally, implementing proper input validation and output encoding mechanisms in web applications can prevent similar issues in the future, aligning with ATT&CK technique T1566.001 for phishing with malicious attachments and T1059.007 for command and scripting interpreter. Network segmentation and access controls should be strengthened to limit potential lateral movement if exploitation occurs, while regular security assessments and penetration testing can help identify other potential vulnerabilities in industrial control systems. Security monitoring should be enhanced to detect suspicious activities in SCADA web interfaces, particularly around user input fields and administrative functions.