CVE-2012-1834 in CMS Tree Page View
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in the cms_tpv_admin_head function in functions.php in the CMS Tree Page View plugin before 0.8.9 for WordPress allows remote attackers to inject arbitrary web script or HTML via the cms_tpv_view parameter to wp-admin/options-general.php.
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Analysis
by VulDB Data Team • 05/09/2026
The vulnerability identified as CVE-2012-1834 represents a critical cross-site scripting flaw within the CMS Tree Page View plugin for WordPress, specifically affecting versions prior to 0.8.9. This vulnerability resides in the cms_tpv_admin_head function located within the functions.php file of the plugin, creating a persistent security weakness that enables malicious actors to execute arbitrary web scripts or HTML code within the context of affected WordPress installations. The flaw manifests when the cms_tpv_view parameter is manipulated through the wp-admin/options-general.php administrative interface, providing attackers with a direct pathway to compromise user sessions and potentially escalate their privileges within the WordPress environment.
The technical exploitation of this vulnerability follows a classic XSS attack pattern where unvalidated user input flows directly into the web page output without proper sanitization or encoding mechanisms. The cms_tpv_view parameter, when processed by the vulnerable cms_tpv_admin_head function, fails to implement adequate input validation or output encoding, allowing malicious payloads to be injected and subsequently executed by unsuspecting administrators or users with administrative privileges. This vulnerability directly maps to CWE-79 - Improper Neutralization of Input During Web Page Generation, which is a fundamental weakness in web application security that enables attackers to inject malicious code into web pages viewed by other users. The attack vector specifically leverages the administrative interface, making it particularly dangerous as it can target privileged users who have elevated access rights within the WordPress system.
The operational impact of CVE-2012-1834 extends beyond simple script injection, as it can lead to complete administrative compromise of WordPress installations. Attackers can leverage this vulnerability to steal administrator cookies, redirect users to malicious sites, inject backdoors, or manipulate the content management system to perform unauthorized actions. The vulnerability's placement within the wp-admin/options-general.php endpoint means that any user with access to the administrative interface could potentially be targeted, and the persistence of the vulnerability across multiple WordPress versions indicates a widespread exposure that affects numerous installations. This flaw aligns with ATT&CK technique T1059.001 - Command and Scripting Interpreter: PowerShell, as it enables attackers to execute arbitrary code within the web application context, potentially leading to further system compromise and data exfiltration.
Mitigation strategies for this vulnerability require immediate action including updating to CMS Tree Page View plugin version 0.8.9 or later, which contains the necessary patches to sanitize the cms_tpv_view parameter input. Administrators should also implement additional security measures such as input validation at multiple layers, output encoding for all dynamic content, and regular security auditing of WordPress plugins and themes. The vulnerability demonstrates the importance of proper parameter validation and input sanitization in web applications, reinforcing the need for comprehensive security practices that align with OWASP Top Ten recommendations for preventing XSS attacks. Organizations should also consider implementing Content Security Policy (CSP) headers to provide additional protection against script injection attacks, and maintain regular patch management processes to address similar vulnerabilities before they can be exploited in the wild.