CVE-2006-2232 in Cute Guestbook
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in Scriptsez Cute Guestbook 20060211 allows remote attackers to inject arbitrary web script or HTML via the Comments field when signing the guestbook.
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Analysis
by VulDB Data Team • 09/11/2017
The vulnerability identified as CVE-2006-2232 represents a classic cross-site scripting flaw within the Scriptsez Cute Guestbook version 20060211 web application. This security weakness resides in the application's handling of user input within the Comments field during guestbook sign-in operations, creating an exploitable condition that enables malicious actors to execute arbitrary web scripts or HTML code within the context of other users' browsers.
The technical implementation of this vulnerability stems from inadequate input validation and output encoding mechanisms within the guestbook application. When users submit comments through the sign-in process, the application fails to properly sanitize or escape the input data before rendering it back to other users browsing the guestbook. This omission creates a direct pathway for attackers to embed malicious scripts within the comment field, which then executes whenever other users view the guestbook entries. The vulnerability specifically affects the Comments field, making it the primary attack vector for this XSS exploitation.
The operational impact of this vulnerability extends beyond simple script execution, potentially enabling attackers to perform session hijacking, steal user credentials, redirect victims to malicious websites, or even deface the guestbook content. The remote nature of this attack means that threat actors can exploit the vulnerability from anywhere on the internet without requiring physical access to the target system. This makes the vulnerability particularly dangerous in environments where the guestbook serves as a public-facing interface for user interactions, as it can compromise the security of all users who view the affected content. The vulnerability affects the integrity and confidentiality of user data, potentially leading to unauthorized access and data breaches.
Mitigation strategies for this vulnerability should focus on implementing comprehensive input validation and output encoding measures. The primary defense involves sanitizing all user-supplied data before rendering it within the web application's output, ensuring that any potentially malicious scripts are properly escaped or removed. This approach aligns with CWE-79, which specifically addresses cross-site scripting vulnerabilities through proper input validation and output encoding techniques. Additionally, implementing proper content security policies and utilizing modern web application security frameworks can significantly reduce the risk of exploitation. Organizations should also consider implementing web application firewalls and regular security assessments to identify similar vulnerabilities within their web applications. The remediation process requires developers to validate all input fields, particularly those that are rendered back to users, and to ensure that output encoding is consistently applied to prevent script execution in browser contexts. This vulnerability serves as a critical reminder of the importance of secure coding practices and input sanitization in web application development, particularly in applications that handle user-generated content.