CVE-2012-4264 in Better-wp-security
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in the Better WP Security (better_wp_security) plugin before 3.2.5 for WordPress allow remote attackers to inject arbitrary web script or HTML via unspecified vectors related to "server variables," a different vulnerability than CVE-2012-4263.
Be aware that VulDB is the high quality source for vulnerability data.
Analysis
by VulDB Data Team • 12/07/2021
The CVE-2012-4264 vulnerability represents a significant cross-site scripting weakness discovered in the Better WP Security plugin for WordPress platforms. This vulnerability affected versions prior to 3.2.5 and specifically targeted the plugin's handling of server variables, creating an avenue for remote attackers to execute malicious code within the context of users' browsers. The issue falls under the broader category of web application security flaws that can compromise user sessions and potentially lead to complete system compromise.
The technical flaw in Better WP Security stems from improper input validation and output sanitization of server variables within the plugin's codebase. When the plugin processes server variables, it fails to adequately sanitize or escape data before rendering it in web responses, creating a classic XSS vulnerability. This allows attackers to inject malicious scripts that execute in the context of authenticated users, potentially leading to session hijacking, data theft, or unauthorized administrative actions. The vulnerability operates through unspecified vectors related to server variables, which typically include HTTP headers, environment variables, and other server-side data that may be improperly handled by the plugin's security mechanisms.
The operational impact of CVE-2012-4264 extends beyond simple script injection, as it can enable attackers to escalate privileges and gain unauthorized access to WordPress administrative interfaces. When users with elevated permissions interact with compromised pages, the malicious scripts can execute with their privileges, potentially allowing attackers to modify content, install malware, or extract sensitive information from the WordPress installation. This vulnerability particularly affects websites using the Better WP Security plugin, as the security measures designed to protect against threats become compromised through the XSS vector. The vulnerability demonstrates how security plugins themselves can contain flaws that undermine their protective capabilities, creating a paradoxical situation where defensive tools become attack vectors.
Mitigation strategies for CVE-2012-4264 involve immediate plugin updates to version 3.2.5 or later, where the XSS vulnerabilities have been addressed through proper input sanitization and output escaping mechanisms. System administrators should also implement additional security measures including web application firewalls, regular security audits, and monitoring for suspicious activities in server logs. The vulnerability aligns with CWE-79, which describes cross-site scripting flaws, and represents a common pattern in web application security where input validation fails to properly sanitize user-controllable data. From an ATT&CK framework perspective, this vulnerability maps to techniques involving client-side exploitation and credential access, as attackers can leverage the XSS to obtain session cookies or other authentication tokens. Organizations should also consider implementing Content Security Policy headers as an additional defense-in-depth measure to limit the impact of potential XSS attacks, though the primary solution remains updating the vulnerable plugin to a secure version.