CVE-2025-54597 Scanner

Heimdall Application Dashboard is a tool used to manage and display various application links in a centralized location. It is commonly used by system administrators to organize server access points and application interfaces in a user-friendly manner. The application is primarily intended for deployment in organizational environments to simplify access to multiple software solutions. Heimdall offers support for various add-ons and customization, making it versatile for different systems and user requirements. It is maintained by LinuxServer.io and is popular in environments where user access to multiple applications needs to be streamlined. Although it offers multiple features, updates are needed to ensure security and address potential vulnerabilities.

The vulnerability detected in the Heimdall Application Dashboard is Cross-Site Scripting (XSS), which occurs when an attacker can inject malicious scripts into web pages viewed by other users. This particular XSS vulnerability is categorized as reflected, meaning it occurs when a malicious script is reflected off a web server, such as a search result or error message, and executed by the victim's browser. In this vulnerability, the improper sanitization of user inputs allows an attacker to inject scripts using the "q" parameter. Once the scripts are executed in the browser, it can lead to unauthorized actions performed on behalf of users. It poses significant security risks to user data and system integrity when exploited.

The vulnerability in Heimdall is especially serious due to its ability to affect user browsers via reflected scripts executed without proper sanitization. The endpoint receiving input through the "q" parameter is particularly vulnerable, allowing attackers to inject scripts like "". HTML injection in the URL parameter could execute scripts that affect user browsers once they access a manipulated link. The improper handling of input data emphasizes the need for strict validation and sanitation procedures in software handling user input from unpredictable sources. The HTTP status response code of 200 confirms the successful reflection and script execution.

If exploited, this reflected XSS vulnerability could lead to drastic consequences, such as the execution of arbitrary scripts, session hijacking, or data theft. Users' session data could be compromised, allowing attackers to impersonate users or conduct operations as if they were legitimate users. Furthermore, attackers might harvest sensitive personal information or perform unauthorized actions on behalf of unsuspecting victims. Such intrusions could severely undermine user trust and jeopardize organizational data security.

REFERENCES

• https://nvd.nist.gov/vuln/detail/CVE-2025-54597
• https://github.com/linuxserver/Heimdall/releases/tag/v2.7.3
• https://github.com/linuxserver/Heimdall/commit/6b9f61b0e672c37b807ff338e1a3fdaa8f39a8a6