CVE-2006-5169 in PowerPortal
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in John Himmelman (aka DaRk2k1) PowerPortal 1.1 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors, possibly related to registering a user. NOTE: the provenance of this information is unknown; the details are obtained from third party information.
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Analysis
by VulDB Data Team • 04/23/2026
The CVE-2006-5169 vulnerability represents a critical cross-site scripting flaw discovered in PowerPortal version 1.1, a web application developed by John Himmelman also known as DaRk2k1. This vulnerability falls under the broader category of web application security weaknesses that have been extensively documented in the CWE (Common Weakness Enumeration) database, specifically mapping to CWE-79 which defines "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')". The vulnerability's classification as an XSS weakness indicates that the application fails to properly sanitize or validate user input before incorporating it into dynamically generated web content, creating an exploitable condition where malicious scripts can be executed in the context of other users' browsers.
The technical nature of this vulnerability allows remote attackers to inject arbitrary web scripts or HTML content into the application's response, potentially through user registration processes or other input mechanisms. While the specific attack vectors remain unspecified in the original description, the mention of user registration as a possible avenue suggests that the flaw likely exists in the application's form handling or user input processing components. This type of vulnerability typically occurs when applications fail to implement proper input validation, output encoding, or context-appropriate sanitization of data submitted by users. The attack surface expands significantly when considering that user registration processes often involve the collection of personal information, which when improperly handled can become a conduit for malicious payload delivery.
The operational impact of CVE-2006-5169 extends beyond simple data theft or defacement, as XSS vulnerabilities can enable attackers to hijack user sessions, perform unauthorized actions on behalf of victims, or redirect users to malicious websites. When combined with the registration process as a potential attack vector, this vulnerability could allow an attacker to create malicious user accounts that persistently serve malicious content to other users. The implications for web application security are particularly concerning given that PowerPortal appears to be a web-based platform where user interactions and data handling are central to its functionality. From an ATT&CK framework perspective, this vulnerability aligns with techniques such as T1059.001 (Command and Scripting Interpreter: Visual Basic) and T1566.001 (Phishing: Spearphishing Attachment), as attackers could leverage the XSS flaw to establish persistent access or deliver additional payloads through compromised user sessions.
Mitigation strategies for this vulnerability should focus on implementing comprehensive input validation and output encoding mechanisms throughout the application's codebase. The recommended approach includes implementing strict validation of all user-supplied input, particularly during registration processes, and ensuring that all dynamic content is properly escaped or encoded before being rendered in web pages. Security measures should include the implementation of Content Security Policy (CSP) headers to limit script execution, the adoption of proper sanitization libraries, and the enforcement of secure coding practices that align with OWASP Top Ten recommendations. Organizations should also consider implementing Web Application Firewalls (WAF) rules specifically designed to detect and block XSS attack patterns, while maintaining regular security assessments to identify and remediate similar vulnerabilities in other application components. The vulnerability's age and the lack of specific attack details underscore the importance of proactive security measures and the need for comprehensive security testing throughout the software development lifecycle to prevent such weaknesses from reaching production environments.