CVE-2025-11278 in Supermon
Summary
by MITRE • 10/05/2025
A security vulnerability has been detected in AllStarLink Supermon up to 6.2. This vulnerability affects unknown code of the component AllMon2. The manipulation leads to cross site scripting. The attack can be initiated remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way. This vulnerability only affects products that are no longer supported by the maintainer.
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Analysis
by VulDB Data Team • 10/05/2025
CVE-2025-11278 represents a cross site scripting vulnerability within AllStarLink Supermon version 6.2 and earlier, specifically impacting the AllMon2 component. This vulnerability arises from insufficient input validation and output encoding mechanisms within the affected software, allowing malicious actors to inject malicious scripts into web interfaces that are subsequently executed by unsuspecting users. The flaw exists in the web-based management interface where user-supplied data is not properly sanitized before being rendered back to the browser, creating a classic XSS attack vector that aligns with CWE-79 Cross Site Scripting.
The remote exploitation capability of this vulnerability presents significant operational risks to affected systems, as attackers can leverage publicly disclosed exploit code to compromise user sessions and potentially escalate privileges within the network. Attackers can craft malicious payloads that, when executed by victims accessing the vulnerable AllMon2 interface, could steal session cookies, redirect users to malicious sites, or execute arbitrary code within the browser context. This vulnerability is particularly concerning given that it affects products that are no longer supported by maintainers, meaning users cannot rely on official security updates or patches to address the issue.
The security implications extend beyond simple script execution, as this vulnerability could enable attackers to perform session hijacking attacks, steal sensitive information, or manipulate the web interface to gain unauthorized access to system resources. The lack of vendor response to early disclosure attempts further compounds the risk, leaving organizations with no official support or remediation guidance for their affected systems. This situation aligns with ATT&CK technique T1566.001 Phishing, where attackers can leverage XSS vulnerabilities to deliver malicious payloads through compromised web interfaces, and T1071.001 Application Layer Protocol HTTP, as the vulnerability operates within the web application layer.
Organizations utilizing affected AllStarLink Supermon systems should implement immediate mitigations including network segmentation to limit access to the vulnerable interface, implementing web application firewalls to detect and block malicious script injection attempts, and conducting thorough user education about the risks of accessing untrusted web interfaces. Additionally, administrators should consider disabling unnecessary web interfaces or implementing strict content security policies to prevent script execution. Given the lack of vendor support, organizations may need to consider migrating to supported alternatives or implementing custom security controls to protect their operational environments from potential exploitation. The vulnerability demonstrates the critical importance of maintaining supported software versions and the risks associated with continuing to operate on end-of-life systems that no longer receive security updates or vendor support.