CVE-2026-82504 in EZ TV Platform Server
Summary
by MITRE • 11/13/2026
VITEC EZ TV Platform Server before 8.5.0 contains an unrestricted file upload vulnerability in the upload handler that allows unauthenticated remote attackers to upload arbitrary files by supplying a target filename in the X-FILENAME request header with no authentication or file type validation required. Attackers can upload a malicious ASPX file directly to the web-accessible uploads directory, where it is immediately executable by the web server, achieving remote code execution in the context of the web server process. Patches are available for versions 8.3.0, 8.3.1, 8.4.0, and 8.4.1. Users running releases prior to 8.3.0 should upgrade to 8.5.0+.
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Analysis
by VulDB Data Team • 11/13/2026
The VITEC EZ TV Platform Server versions preceding 8.5.0 are affected by a critical unrestricted file upload vulnerability located within the application's upload handler component. This flaw stems from insufficient input validation and authentication controls, allowing unauthenticated remote attackers to bypass security mechanisms entirely. The core technical issue involves the server accepting files based on the X-FILENAME request header without performing any checks regarding file type, extension, or content integrity. By supplying a target filename that ends with an executable web script extension such as ASPX, an attacker can trick the application into saving malicious code directly to a directory that is publicly accessible and configured for execution by the underlying web server software. This lack of validation represents a fundamental failure in implementing secure coding practices regarding file handling operations.
The operational impact of this vulnerability is severe, leading directly to remote code execution with the privileges of the web server process. Once an attacker successfully uploads a malicious ASPX payload into the designated upload directory, the web server interprets and executes the script as if it were part of the legitimate application logic. This grants the adversary full control over the underlying operating system environment running the VITEC EZ TV Platform Server. The consequences can include complete compromise of sensitive data stored on or accessible through the platform, unauthorized modification of broadcast configurations, installation of additional malware such as web shells for persistent access, and potential pivoting to other systems within the internal network infrastructure. Given that this vulnerability requires no authentication, it is highly exploitable by automated scanning tools and opportunistic attackers targeting internet-facing assets running vulnerable versions.
From a classification perspective, this flaw aligns with CWE-434, which describes unrestricted upload of file with dangerous type, as well as CWE-798, involving the use of hard-coded credentials or lack of authentication for critical functions. In terms of adversary tactics and techniques, this vulnerability facilitates initial access via web application attacks, specifically mapping to MITRE ATT&CK technique T1505.003, which covers server-side request forgery components like Web Shell deployment through file upload mechanisms. The ability to execute arbitrary code remotely places this in the highest severity category of risk, necessitating immediate remediation efforts by system administrators and security operations teams responsible for maintaining these broadcast infrastructure systems.
Mitigation strategies must prioritize upgrading the VITEC EZ TV Platform Server software immediately if possible. Official patches are available for versions 8.3.0, 8.3.1, 8.4.0, and 8.4.1, while users running releases prior to version 8.3.0 should upgrade directly to version 8.5.0 or later to ensure all known issues in the upload handler are addressed. In scenarios where immediate patching is not feasible due to operational constraints, temporary compensating controls should be implemented to reduce exposure. These measures include restricting access to the web server's upload directories using firewall rules or reverse proxy configurations to allow only trusted IP addresses. Additionally, configuring the web server to disable script execution in specific subdirectories can prevent the immediate exploitation of uploaded files even if they are successfully stored on disk. Regular vulnerability scanning and monitoring for unusual file creation events in public-facing directories should also be established as part of a broader defense-in-depth strategy against similar upload-based attacks.