CVE-2014-8772 in X3
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in the search_controller in X3 CMS 0.5.1 and 0.5.1.1 allows remote authenticated users to inject arbitrary web script or HTML via the search parameter.
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Analysis
by VulDB Data Team • 04/03/2018
The CVE-2014-8772 vulnerability represents a critical cross-site scripting flaw within the X3 CMS content management system version 0.5.1 and 0.5.1.1. This vulnerability specifically resides in the search_controller component, which processes user search queries and handles input validation. The flaw enables authenticated attackers to execute malicious scripts within the context of other users' browsers, creating a significant security risk for websites utilizing this CMS version. The vulnerability's classification as a persistent XSS issue means that malicious code injected through the search parameter can be stored and executed whenever other users access the affected pages, potentially compromising user sessions and data integrity.
The technical implementation of this vulnerability stems from inadequate input sanitization within the search_controller module. When authenticated users submit search queries, the system fails to properly validate or escape special characters in the search parameter, allowing attackers to inject malicious HTML or JavaScript code. This flaw operates under the Common Weakness Enumeration framework as CWE-79, which specifically addresses Cross-Site Scripting vulnerabilities where untrusted data is improperly incorporated into web pages without adequate validation or escaping. The vulnerability demonstrates a classic input validation failure where the application does not sufficiently sanitize user-provided data before processing it within the web application context.
The operational impact of CVE-2014-8772 extends beyond simple script injection, potentially enabling attackers to perform session hijacking, steal sensitive user information, or redirect users to malicious websites. Since the vulnerability affects authenticated users, attackers can leverage existing user privileges to execute more sophisticated attacks, including privilege escalation or data exfiltration. The attack vector requires minimal complexity as it only necessitates an authenticated user session and access to the search functionality, making it particularly dangerous in environments where administrators or content creators frequently use the search feature. This vulnerability can be exploited through the standard web application interface without requiring special tools or extensive technical knowledge.
Mitigation strategies for CVE-2014-8772 should prioritize immediate remediation through official patches or updates provided by the X3 CMS developers. Organizations should implement comprehensive input validation and output encoding mechanisms to prevent malicious data from being processed as executable code. The implementation of Content Security Policy headers can provide additional protection layers against XSS attacks by restricting script execution and controlling resource loading. Security teams should also consider implementing web application firewalls to detect and block suspicious search parameter patterns, while regular security assessments and code reviews can help identify similar vulnerabilities in other components of the CMS. The ATT&CK framework categorizes this vulnerability under the T1059.008 technique for Scripting, specifically targeting web application interfaces where input validation is insufficient, making it a critical target for defensive security measures and incident response protocols.