CVE-2008-6396 in Uploader
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in account.php in Celerondude Uploader 6.1 allows remote attackers to inject arbitrary web script or HTML via the username parameter. NOTE: some of these details are obtained from third party information.
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Analysis
by VulDB Data Team • 04/17/2025
The CVE-2008-6396 vulnerability represents a classic cross-site scripting flaw in the Celerondude Uploader 6.1 web application, specifically within the account.php script. This vulnerability arises from inadequate input validation and output encoding practices, allowing malicious actors to inject arbitrary web scripts or HTML content through the username parameter. The flaw exists at the application layer where user-supplied data enters the system without proper sanitization, creating an exploitable entry point for attackers seeking to compromise user sessions or deliver malicious payloads.
The technical implementation of this vulnerability stems from the application's failure to properly escape or validate user input before rendering it in web responses. When the username parameter is processed by account.php, the system does not adequately sanitize the input to prevent script execution in the browser context. This represents a direct violation of secure coding practices and aligns with CWE-79, which specifically addresses cross-site scripting vulnerabilities due to insufficient input validation and output encoding. The vulnerability allows attackers to craft malicious usernames containing script tags or other HTML elements that execute in the context of other users' browsers when the compromised username is displayed.
Operationally, this vulnerability presents significant risks to both individual users and the application's overall security posture. Attackers can leverage this flaw to steal session cookies, redirect users to malicious sites, or deface the application interface. The impact extends beyond simple data theft as it can enable more sophisticated attacks such as session hijacking, where attackers gain unauthorized access to user accounts, or the delivery of additional malware through browser-based exploits. Users who view compromised usernames in the application context become victims of the attack, making this vulnerability particularly dangerous in multi-user environments where shared access and visibility exist.
Mitigation strategies for CVE-2008-6396 should focus on implementing comprehensive input validation and output encoding mechanisms throughout the application. The primary defense involves sanitizing all user-supplied input, particularly parameters used in dynamic content generation, and ensuring proper HTML escaping before rendering any user data in web responses. This approach aligns with the ATT&CK framework's defense evasion techniques and represents a fundamental security control that should be implemented across all web applications. Organizations should also consider implementing content security policies, regular security code reviews, and input validation libraries to prevent similar vulnerabilities from occurring in future development cycles. Additionally, the affected Celerondude Uploader 6.1 version should be immediately updated to a patched release or replaced with a more secure alternative to eliminate the exposure window.