CVE-2006-1507 in PHPKIT
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in PHPKIT 1.6.03 allows remote attackers to inject arbitrary web script or HTML via the error parameter to include.php, possibly due to a problem in login/login.php.
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Analysis
by VulDB Data Team • 06/20/2019
The vulnerability identified as CVE-2006-1507 represents a critical cross-site scripting flaw within PHPKIT version 1.6.03, a content management system that was widely deployed in web environments during the mid-2000s. This vulnerability resides in the application's handling of user input within the error parameter of the include.php script, creating a pathway for malicious actors to execute arbitrary web scripts or HTML code within the context of other users' browsers. The flaw specifically manifests when the application fails to properly sanitize or encode user-supplied input before incorporating it into dynamically generated web pages, thereby enabling persistent or reflected XSS attacks that can compromise user sessions and data integrity.
The technical implementation of this vulnerability stems from insufficient input validation and output encoding practices within PHPKIT's authentication and error handling mechanisms. The login/login.php component appears to process error messages without adequate sanitization, allowing attackers to inject malicious payloads through the error parameter that gets passed to include.php. This weakness aligns with CWE-79, which categorizes cross-site scripting vulnerabilities as a result of insufficient input validation and output encoding. The vulnerability is particularly concerning because it operates at the application layer, where user-provided data is directly integrated into web responses without proper security controls, creating a persistent threat vector that can be exploited across multiple user sessions.
From an operational impact perspective, this vulnerability exposes organizations using PHPKIT 1.6.03 to significant security risks including session hijacking, credential theft, and potential data breaches. Attackers can leverage this flaw to inject malicious scripts that can steal cookies, redirect users to phishing sites, or execute unauthorized actions on behalf of authenticated users. The reflected nature of the XSS attack means that victims must be tricked into clicking malicious links that contain the exploit payload, but once executed, the attack can persistently compromise user sessions and potentially escalate to full system compromise. The vulnerability also aligns with ATT&CK technique T1566, which describes social engineering tactics used to deliver malicious payloads through compromised web applications, and T1071, which covers application layer protocols that can be exploited for malicious code execution.
Mitigation strategies for CVE-2006-1507 must address both immediate remediation and long-term security improvements within the PHPKIT application ecosystem. Organizations should prioritize upgrading to a patched version of PHPKIT that properly sanitizes user input and implements proper output encoding for all dynamic content generation. The implementation of Content Security Policy headers can provide additional defense-in-depth measures to prevent unauthorized script execution, while input validation mechanisms should be strengthened to ensure all user-supplied parameters undergo rigorous sanitization before being processed or displayed. Security teams should also implement regular vulnerability scanning and penetration testing to identify similar weaknesses in other application components, as this vulnerability demonstrates the importance of comprehensive input validation across all user-facing interfaces. The remediation process must include thorough code review of authentication and error handling modules, with particular attention to how parameters are processed and rendered within web responses to prevent similar vulnerabilities from emerging in future iterations of the application.