CVE-2007-0146 in Fix
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in Fix and Chips CMS 1.0 allow remote attackers to inject arbitrary web script or HTML via the (1) id parameter in (a) delete-announce.php; the (2) Announcement form field in (b) staff.php; the (3) Client Name, (4) Business Name, (5) Street, (6) Address 2, (7) Town/City, (8) Postcode, (9) Phone Number, (10) Email Address and (11) Website Address form fields in (c) new_customer.php; and unspecified fields in (d) search.php and (e) client-results.php.
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Analysis
by VulDB Data Team • 07/23/2019
The vulnerability described in CVE-2007-0146 represents a critical cross-site scripting flaw affecting Fix and Chips CMS version 1.0, exposing multiple entry points for remote attackers to execute malicious web scripts within the context of victim browsers. This type of vulnerability 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 impacts a wide range of input parameters across multiple PHP scripts within the content management system, creating numerous attack vectors that significantly expand the potential attack surface.
The technical exploitation of this vulnerability occurs through multiple distinct parameter injection points that bypass proper input validation and output sanitization mechanisms. The primary attack vectors include the id parameter in delete-announce.php which likely processes user input without adequate filtering before rendering in the web response, the Announcement form field in staff.php that accepts unvalidated user input for display purposes, and the comprehensive set of form fields in new_customer.php including Client Name, Business Name, Street, Address 2, Town/City, Postcode, Phone Number, Email Address, and Website Address. Additionally, unspecified fields in search.php and client-results.php provide further opportunities for malicious script injection, demonstrating a systemic lack of input sanitization across the application's user input handling mechanisms.
The operational impact of this vulnerability extends beyond simple script execution, as it enables attackers to perform session hijacking, defacement of web content, data theft, and potentially escalate privileges within the CMS environment. According to ATT&CK framework category T1531 for Account Access Removal and T1203 for Exploitation for Client Execution, an attacker could leverage these XSS vulnerabilities to establish persistent access to user sessions or inject malicious code that redirects users to phishing sites. The vulnerability's presence in multiple files suggests either a lack of consistent security practices during development or a fundamental flaw in the application's input handling architecture, making it particularly dangerous as it provides multiple pathways for exploitation. The widespread nature of the vulnerability across different PHP scripts indicates that the development team failed to implement proper output encoding or input validation across the entire application, creating a systemic security weakness that allows attackers to bypass security controls in multiple locations.
Mitigation strategies should focus on implementing comprehensive input validation and output encoding across all user-facing forms and parameters, with particular emphasis on sanitizing all data before rendering in web responses. The recommended approach includes implementing proper HTML entity encoding for all dynamic content, establishing a centralized input validation framework, and applying the principle of least privilege in form field handling. Security measures should also include implementing Content Security Policy headers to limit script execution, regular security code reviews to identify similar vulnerabilities, and ensuring that all user inputs undergo proper sanitization regardless of the specific parameter or script location. The vulnerability demonstrates the critical importance of consistent security implementation across all application components and highlights the necessity of following established security standards such as those defined in the OWASP Top Ten and NIST cybersecurity frameworks to prevent similar issues in future development cycles.