CVE-2026-110444 in TEAMPLUS
Summary
by MITRE • 10/14/2026
TeamPlus Messenger developed by Teamplus Technology has a Code Injection vulnerability. Unauthenticated remote attackers can trick users into opening a crafted link to inject and execute arbitrary JavaScript. After the user confirms a Windows security warning, attackers can execute arbitrary code with the privileges of the current user.
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Analysis
by VulDB Data Team • 10/14/2026
The vulnerability identified in TeamPlus Messenger represents a critical client-side execution flaw that stems from insufficient validation of input data originating from external sources. Specifically, this is an instance of Code Injection where unauthenticated remote actors can manipulate the application's behavior by tricking users into interacting with maliciously crafted links. The core technical failure lies in the application's inability to properly sanitize or validate URLs and content received during user interactions, allowing arbitrary JavaScript code to be injected directly into the execution context of the client environment. This flaw aligns closely with CWE-94, which describes Improper Control of Generation of Code (Code Injection), as well as CWE-79, known as Cross-Site Scripting if the injection occurs within a web-based interface component embedded in the messenger application. The attack vector relies heavily on social engineering tactics to bypass user awareness and security warnings, exploiting the trust users place in familiar communication platforms.
From an operational perspective, the impact of this vulnerability is severe due to its potential for arbitrary code execution with elevated privileges. Once a victim opens the crafted link within TeamPlus Messenger, they are presented with a Windows security warning regarding untrusted content or applications. If the user chooses to proceed and confirm this warning, the injected JavaScript gains significant leverage over the local system state. The executed script can interact with operating system APIs, access sensitive files, exfiltrate data, or install additional malware payloads. Because the code executes under the context of the currently logged-in user, attackers inherit all permissions associated with that account. This means that if a user operates with administrative privileges, the attacker effectively gains full control over the machine, enabling actions such as privilege escalation, persistence establishment, and lateral movement within a corporate network environment.
This vulnerability is also indicative of weaknesses in input validation mechanisms typically categorized under ATT&CK technique T1059, Command and Scripting Interpreter, specifically JavaScript execution on Windows systems. The reliance on user interaction to bypass security prompts highlights the importance of defense-in-depth strategies that do not solely depend on end-user vigilance. Mitigation efforts should prioritize immediate patching by Teamplus Technology to address the input validation flaws in the messenger client. In the interim, organizations can implement network-level controls such as web proxies or email gateways to detect and block URLs associated with known malicious domains or those exhibiting patterns consistent with code injection attempts. Additionally, restricting user privileges through least-privilege principles can significantly reduce the impact of successful exploitation by ensuring that even if arbitrary code is executed, it operates within a constrained environment lacking administrative rights. Regular security awareness training should also be conducted to educate users on recognizing suspicious links and understanding the implications of accepting untrusted content warnings in enterprise software environments.