CVE-2012-3434 in Count Per Day
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in userperspan.php in the Count Per Day module before 3.2 for WordPress allow remote attackers to inject arbitrary web script or HTML via the (1) page, (2) datemin, or (3) datemax parameter.
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Analysis
by VulDB Data Team • 12/31/2024
The CVE-2012-3434 vulnerability represents a critical cross-site scripting flaw discovered in the Count Per Day WordPress module version 3.1 and earlier. This vulnerability specifically affects the userperspan.php script within the module, creating a persistent security risk for WordPress installations that utilize this plugin. The vulnerability stems from insufficient input validation and sanitization mechanisms, allowing attackers to inject malicious JavaScript code through carefully crafted parameters that are not properly escaped or filtered before being rendered in web pages. The affected parameters include page, datemin, and datemax, which are commonly used for navigation and date filtering operations within the module's user interface. This vulnerability falls under the CWE-79 category of Cross-Site Scripting, specifically representing a stored XSS variant that can persist across multiple user sessions and potentially affect numerous visitors to the compromised website.
The operational impact of this vulnerability extends beyond simple script injection, as it provides attackers with a powerful vector for executing malicious activities within the context of authenticated user sessions. When a victim visits a page that displays the affected Count Per Day module, the injected JavaScript code executes automatically in their browser, potentially leading to session hijacking, credential theft, or redirection to malicious websites. The vulnerability's remote exploitability means that attackers can leverage it without requiring local access or authentication to the WordPress installation, making it particularly dangerous for widely used plugins. Attackers can craft malicious URLs containing script tags in any of the three vulnerable parameters, and when these parameters are processed by the userperspan.php script, the injected code becomes persistent in the application's output, creating a legitimate-looking but malicious page that can be served to unsuspecting users.
The exploitation of this vulnerability aligns with several tactics described in the MITRE ATT&CK framework, particularly focusing on initial access through web application attacks and privilege escalation via session manipulation. The vulnerability demonstrates how seemingly innocuous input parameters can become attack vectors when proper sanitization mechanisms are absent from web applications. Security professionals should note that this vulnerability represents a classic example of the importance of input validation and output encoding in web application security. The fact that this vulnerability existed in a widely deployed WordPress plugin underscores the critical need for regular security updates and proper security testing of third-party components. Organizations using WordPress should have implemented automated patch management systems to address such vulnerabilities promptly, as the window of opportunity for attackers to exploit this flaw was significant given the plugin's widespread adoption and the ease with which the attack could be executed.
Mitigation strategies for CVE-2012-3434 should include immediate patching of the Count Per Day module to version 3.2 or later, where the vulnerability has been resolved through proper input sanitization and parameter validation. System administrators should also implement additional security measures such as web application firewalls that can detect and block malicious script injection attempts, and regular security audits of installed WordPress plugins to identify outdated or vulnerable components. The vulnerability highlights the importance of the principle of least privilege in web application design, where input parameters should be strictly validated and sanitized before being processed or displayed. Organizations should also consider implementing Content Security Policy headers to add an additional layer of protection against XSS attacks, and conduct regular security training for developers to ensure proper input handling practices are maintained throughout the application development lifecycle. The vulnerability serves as a reminder that even small input validation gaps can lead to significant security breaches, emphasizing the need for comprehensive security testing and continuous monitoring of web applications.