CVE-2006-5626 in phpFaber Content Management System
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in cms_images/js/htmlarea/htmlarea.php in phpFaber Content Management System (CMS) before 1.3.36 on 20061026 allows remote attackers to inject arbitrary web script or HTML, probably via arbitrary parameters in the query string, as demonstrated with a vigilon parameter. NOTE: earlier downloads of 1.3.36 have the vulnerability; the software was updated without changing the version number.
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Analysis
by VulDB Data Team • 04/26/2026
The vulnerability identified as CVE-2006-5626 represents a classic cross-site scripting flaw within the phpFaber Content Management System, specifically affecting versions prior to 1.3.36 released on October 26, 2006. This security weakness resides in the cms_images/js/htmlarea/htmlarea.php component of the CMS, which processes user input through query string parameters without adequate sanitization or validation mechanisms. The vulnerability manifests when remote attackers manipulate the vigilon parameter or other arbitrary parameters within the HTTP request query string, enabling them to inject malicious web scripts or HTML content directly into the application's response. This particular implementation flaw demonstrates a critical failure in input validation and output encoding practices that were prevalent in web applications during the mid-2000s era, when security awareness and proper sanitization techniques were not yet fully established as standard development practices.
The technical exploitation of this vulnerability occurs through the manipulation of HTTP query parameters that are processed by the htmlarea.php script, which is designed to provide a rich text editing interface within the CMS. When the application fails to properly sanitize user-supplied input, attackers can embed malicious JavaScript code or HTML elements that will be executed in the context of other users' browsers who view the affected content. The vulnerability specifically affects the CMS's handling of parameters passed through the query string, where the vigilon parameter serves as a demonstration vector for how arbitrary input can be exploited. This flaw falls under the CWE-79 category of Cross-Site Scripting, which is classified as a fundamental web application security weakness that allows attackers to inject client-side scripts into web pages viewed by other users. The vulnerability's persistence in earlier downloads of version 1.3.36 despite the release of a patched version highlights the importance of proper software update management and version control practices within the security community.
The operational impact of this vulnerability extends beyond simple data theft or defacement, as it can enable sophisticated attack chains that leverage the compromised system to perform more advanced malicious activities. An attacker who successfully exploits this XSS vulnerability can potentially steal session cookies, redirect users to malicious sites, or inject persistent malicious content that affects all users of the compromised CMS. This vulnerability aligns with ATT&CK technique T1566.001 which describes social engineering via malicious web content, allowing attackers to establish a foothold within the target environment. The exploitation capability of this vulnerability also supports broader attack patterns including credential theft, privilege escalation, and lateral movement within networks where the compromised CMS is deployed. The fact that the software was updated without changing the version number creates additional operational challenges for system administrators who may not recognize the presence of the security patch, potentially leaving systems vulnerable to attack even when they appear to be running the latest version.
Mitigation strategies for CVE-2006-5626 require immediate implementation of proper input validation and output encoding mechanisms within the affected CMS components. Organizations should prioritize upgrading to version 1.3.36 or later, ensuring that the update includes proper parameter sanitization and input validation routines that prevent malicious content from being processed or displayed. The remediation process must include comprehensive testing of all query string parameter handling within the CMS, particularly focusing on the htmlarea.php component and similar rich text editing functionalities. Security measures should implement Content Security Policy headers to limit script execution contexts, employ proper HTML escaping for all dynamic content, and establish robust input validation that rejects or sanitizes potentially malicious payloads. Additionally, administrators should implement network monitoring to detect unusual patterns of parameter manipulation and establish automated patch management processes that ensure all system components receive timely security updates. The vulnerability serves as a reminder of the critical importance of maintaining current security patches and the necessity of implementing defense-in-depth strategies that include both perimeter security controls and application-level protections against common web vulnerabilities.