CVE-2012-2371 in WP-FaceThumb
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in index.php in the WP-FaceThumb plugin 0.1 for WordPress allows remote attackers to inject arbitrary web script or HTML via the pagination_wp_facethumb parameter.
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Analysis
by VulDB Data Team • 06/23/2025
The CVE-2012-2371 vulnerability represents a critical cross-site scripting flaw within the WP-FaceThumb WordPress plugin version 0.1, specifically affecting the index.php file. This vulnerability arises from insufficient input validation and output encoding mechanisms within the plugin's pagination functionality, creating a pathway for malicious actors to execute arbitrary web scripts or HTML code within the context of affected websites. The vulnerability is classified under CWE-79 as a failure to sanitize input data, making it a prime target for attackers seeking to exploit web application security weaknesses. The specific parameter pagination_wp_facethumb serves as the attack vector, where unsanitized user input is directly incorporated into the web page output without proper HTML escaping or context-aware encoding.
The operational impact of this vulnerability extends beyond simple data theft or defacement, as it enables attackers to establish persistent malicious presence on compromised WordPress sites. When exploited, the XSS vulnerability allows threat actors to inject malicious JavaScript code that can hijack user sessions, redirect visitors to phishing sites, or perform unauthorized actions on behalf of authenticated users. The vulnerability affects any WordPress installation running the vulnerable plugin version, making it particularly dangerous given the widespread adoption of WordPress as a content management system. The attack surface is broad since the vulnerability can be triggered through normal pagination navigation, requiring minimal user interaction for successful exploitation.
Security professionals should note that this vulnerability aligns with ATT&CK technique T1566.001, which involves phishing attacks through malicious links or scripts, and T1059.007, which covers scripting through web shells or malicious code injection. The vulnerability's exploitation requires no privileged access or advanced technical knowledge, making it accessible to a broad range of threat actors including script kiddies and organized groups. The persistence of this vulnerability in older plugin versions highlights the importance of regular security audits and timely patch management practices within WordPress ecosystems.
Mitigation strategies should include immediate removal or updating of the vulnerable WP-FaceThumb plugin to a patched version, implementation of input validation and output encoding controls, and deployment of web application firewalls to detect and block malicious payloads. Organizations should also conduct comprehensive security assessments of their WordPress installations to identify similar vulnerabilities in other plugins or themes. The vulnerability underscores the necessity of following security best practices such as the principle of least privilege, regular security updates, and maintaining current threat intelligence to protect against known exploitation techniques. Additionally, implementing Content Security Policy headers can provide an additional layer of protection against XSS attacks by restricting script execution sources and preventing unauthorized code injection.