CVE-2005-4489 in Scoop
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in Scoop 1.1 RC1 and earlier allows remote attackers to inject arbitrary web script or HTML via the (1) type and (2) count parameters, and (3) the query string in a story.
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Analysis
by VulDB Data Team • 11/22/2025
The vulnerability described in CVE-2005-4489 represents a classic cross-site scripting flaw affecting Scoop 1.1 RC1 and earlier versions, demonstrating a critical weakness in input validation and output encoding mechanisms. This vulnerability exists within the web application's handling of user-supplied data, specifically targeting parameters used in the application's story display functionality. The flaw allows remote attackers to execute malicious scripts in the context of other users' browsers, potentially leading to session hijacking, data theft, or unauthorized actions within the application's security boundaries. The vulnerability affects three distinct input vectors including the type parameter, count parameter, and the entire query string within the story context, indicating a systemic issue in how the application processes and sanitizes user input before rendering it in web responses.
The technical implementation of this XSS vulnerability stems from insufficient sanitization of user-provided parameters within the Scoop application's story handling mechanism. When the application processes the type and count parameters, or when it parses the query string in story contexts, it fails to properly encode or escape special characters that could be interpreted as HTML or JavaScript code by web browsers. This lack of input validation creates an environment where malicious actors can inject script tags, event handlers, or other malicious code that executes in the victim's browser when the affected page is rendered. The vulnerability operates under CWE-79 which specifically addresses cross-site scripting flaws, where the application fails to sanitize user input before incorporating it into dynamically generated web content. The attack vector is particularly concerning as it requires no privileged access or authentication, making it exploitable by anyone who can submit data to the vulnerable application.
The operational impact of this vulnerability extends beyond simple script execution, potentially enabling sophisticated attacks within the application's security model. An attacker could craft malicious payloads that steal session cookies, redirect users to phishing sites, or modify the application's behavior to perform unauthorized actions. The vulnerability's presence in the story functionality suggests that any user-generated content or parameters related to story display could be exploited, creating a potential attack surface that affects the application's core functionality. This type of vulnerability directly violates the principle of least privilege and can lead to complete compromise of user sessions, especially if the application handles sensitive information or provides administrative capabilities. The attack could be executed through various means including social engineering to convince users to click malicious links or through automated scanning tools that identify and exploit such vulnerabilities.
Mitigation strategies for this vulnerability must address both immediate remediation and long-term architectural improvements to prevent similar issues. The primary solution involves implementing comprehensive input validation and output encoding mechanisms that sanitize all user-supplied data before it is processed or displayed. This includes applying proper HTML entity encoding to all parameters and query string values, implementing strict parameter validation, and using secure coding practices that prevent the injection of executable code. Organizations should consider implementing Content Security Policy headers to limit script execution, utilize parameterized queries or secure APIs, and establish proper input sanitization routines that filter out or escape potentially dangerous characters. The remediation process should follow established security frameworks such as the OWASP Top Ten guidelines for preventing XSS vulnerabilities, which recommend using appropriate encoding techniques and maintaining secure input handling practices. Additionally, regular security testing including automated scanning and manual penetration testing should be implemented to identify and address similar vulnerabilities before they can be exploited in production environments.