CVE-2014-4551 in Social Connect
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in diagnostics/test.php in the Social Connect plugin 1.0.4 and earlier for WordPress allows remote attackers to inject arbitrary web script or HTML via the testing parameter.
Be aware that VulDB is the high quality source for vulnerability data.
Analysis
by VulDB Data Team • 03/08/2018
The CVE-2014-4551 vulnerability represents a critical cross-site scripting flaw within the Social Connect plugin for WordPress, specifically affecting versions 1.0.4 and earlier. This vulnerability resides in the diagnostics/test.php file and demonstrates a classic input validation failure that enables malicious actors to execute arbitrary web scripts or HTML code within the context of a victim's browser session. The issue stems from insufficient sanitization of user-supplied input parameters, particularly the testing parameter that is processed without proper validation or encoding mechanisms.
The technical exploitation of this vulnerability occurs when an attacker crafts a malicious URL containing crafted script code within the testing parameter value. When a victim with the vulnerable plugin installed accesses this specially crafted URL, the malicious script executes within the victim's browser context, potentially leading to session hijacking, credential theft, or redirection to malicious sites. This type of vulnerability falls under CWE-79 which specifically addresses cross-site scripting flaws in web applications, where untrusted data is improperly incorporated into web pages without proper validation or encoding.
The operational impact of CVE-2014-4551 extends beyond simple script injection, as it can be leveraged for more sophisticated attacks within the WordPress ecosystem. Attackers can use this vulnerability to establish persistent access to compromised sites, manipulate user sessions, or harvest sensitive information from authenticated users. The vulnerability is particularly dangerous because it affects the diagnostic functionality of the plugin, which may be accessed by administrators or users with elevated privileges, potentially providing attackers with additional attack surface within the WordPress installation. This aligns with ATT&CK technique T1566 which covers spearphishing with a malicious attachment, as attackers can use this vulnerability to deliver malicious payloads through seemingly legitimate diagnostic pages.
Mitigation strategies for this vulnerability require immediate patching of the Social Connect plugin to version 1.0.5 or later, which contains the necessary input validation fixes. Organizations should also implement comprehensive input sanitization measures, including the use of proper HTML encoding for all user-supplied data before rendering in web pages. Additional protective measures include implementing content security policies to limit script execution, conducting regular security audits of WordPress plugins, and maintaining up-to-date vulnerability management procedures. Network monitoring should be enhanced to detect suspicious parameter patterns that may indicate exploitation attempts, while security teams should establish incident response protocols specifically addressing XSS vulnerabilities in content management systems. The vulnerability demonstrates the critical importance of proper input validation and output encoding practices in web application security, particularly within CMS environments where plugins can introduce additional attack vectors.