CVE-2005-1557 in Guestbook PRO
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in WebApp Guestbook PRO 3.2.1 and earlier allow remote attackers to inject arbitrary web script or HTML via the (1) title or (2) content of a message.
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Analysis
by VulDB Data Team • 06/23/2018
The vulnerability identified as CVE-2005-1557 represents a critical security flaw in WebApp Guestbook PRO version 3.2.1 and earlier systems, exposing applications to cross-site scripting attacks that can compromise user sessions and data integrity. This vulnerability resides in the guestbook application's input validation mechanisms, specifically failing to properly sanitize user-supplied data entered into message title and content fields. The flaw enables malicious actors to inject arbitrary web scripts or HTML code that executes within the context of other users' browsers when they view the compromised guestbook entries.
The technical implementation of this vulnerability stems from insufficient output encoding and input validation practices within the guestbook application's message handling functionality. When users submit messages containing malicious scripts in either the title or content fields, the application fails to properly escape or encode special characters that could be interpreted as HTML or JavaScript commands. This lack of proper sanitization creates an environment where attackers can craft payloads that execute in the browser context of unsuspecting users, potentially leading to session hijacking, credential theft, or redirection to malicious sites. The vulnerability manifests as a classic reflected cross-site scripting issue where the malicious code is immediately reflected back to users without proper sanitization.
The operational impact of this vulnerability extends beyond simple script execution, as it can be exploited to perform sophisticated attacks against authenticated users of the guestbook application. Attackers can leverage this flaw to steal session cookies, redirect users to phishing sites, or inject malicious content that appears legitimate within the guestbook interface. The vulnerability affects all users of the affected software versions, making it particularly dangerous in environments where the guestbook serves as a public-facing component of a website or web application. From a cybersecurity perspective, this vulnerability represents a significant risk to user privacy and application integrity, as it can be exploited to compromise the security of the entire web application ecosystem where the guestbook is deployed.
Mitigation strategies for this vulnerability should focus on implementing robust input validation and output encoding mechanisms throughout the application's data handling processes. Organizations should immediately upgrade to patched versions of WebApp Guestbook PRO, as the vulnerability was addressed in subsequent releases. Additionally, developers should implement comprehensive sanitization of all user inputs, particularly in fields where HTML content is accepted. The implementation of content security policies and proper HTML encoding techniques can significantly reduce the attack surface for such vulnerabilities. This remediation approach aligns with established cybersecurity frameworks including CWE-79 which specifically addresses cross-site scripting vulnerabilities, and follows ATT&CK techniques related to credential access and web application attacks. Regular security assessments and input validation testing should be implemented to prevent similar vulnerabilities from emerging in future iterations of web applications.