CVE-2015-9418 in Watu Pro Plugin
Summary
by MITRE
The Watu Pro plugin before 4.9.0.8 for WordPress has CSRF that allows an attacker to delete quizzes.
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Analysis
by VulDB Data Team • 12/27/2023
The CVE-2015-9418 vulnerability affects the Watu Pro plugin version 4.9.0.7 and earlier, representing a critical cross-site request forgery flaw within the WordPress ecosystem. This vulnerability specifically targets the quiz management functionality of the plugin, creating a significant security risk for WordPress sites that utilize this particular plugin version. The flaw stems from insufficient validation of HTTP requests originating from authenticated users, allowing malicious actors to exploit the absence of proper anti-CSRF tokens in the plugin's quiz deletion endpoints. The vulnerability exists within the plugin's administrative interface where quiz deletion operations occur, making it particularly dangerous as it enables unauthorized modification of course content without proper authentication. This type of vulnerability falls under CWE-352, which specifically addresses Cross-Site Request Forgery weaknesses in software applications, and aligns with ATT&CK technique T1213.002 related to Data from Information Repositories, as it allows unauthorized access to quiz data within a learning management system context. The vulnerability demonstrates a fundamental flaw in the plugin's security architecture where the absence of CSRF protection tokens makes it possible for attackers to craft malicious requests that appear legitimate to the WordPress system.
The technical implementation of this vulnerability exploits the trust relationship between the WordPress admin interface and the Watu Pro plugin's quiz management functions. When an authenticated administrator visits a malicious website or clicks on a compromised link, the attacker can trigger a request that deletes quizzes without requiring the administrator's knowledge or consent. The attack vector typically involves crafting a malicious HTML form or JavaScript code that submits a DELETE request to the quiz deletion endpoint within the plugin's administrative area. This vulnerability is particularly concerning because it operates at the application layer, targeting the specific functionality of the plugin rather than the WordPress core itself. The flaw allows for remote code execution through the manipulation of quiz data, which could potentially lead to more severe consequences including data loss, disruption of educational content, or even further exploitation of the compromised WordPress installation. The vulnerability's impact extends beyond simple quiz deletion as it compromises the integrity of the educational content management system and can be leveraged as a stepping stone for additional attacks.
The operational impact of CVE-2015-9418 is substantial for organizations relying on WordPress-based learning management systems, particularly educational institutions or corporate training platforms that utilize the Watu Pro plugin. A successful exploitation of this vulnerability can result in complete loss of quiz data, disruption of learning activities, and potential compromise of student information within the system. The vulnerability affects the availability and integrity of educational content, making it particularly dangerous in environments where quiz data represents critical assessment information. Attackers can leverage this vulnerability to cause significant operational disruption by deleting quizzes, potentially affecting student grades, course completion status, or entire curriculum modules. The vulnerability also creates a persistent security risk as it allows attackers to maintain access to the system through the compromised quiz management functionality, potentially enabling further reconnaissance or data exfiltration activities. Organizations may face regulatory compliance issues if the vulnerability results in unauthorized access to educational records or student data, particularly in environments governed by privacy regulations such as FERPA or GDPR. The attack requires minimal technical expertise to execute, making it accessible to a wide range of threat actors from script kiddies to organized cybercriminals.
Mitigation strategies for CVE-2015-9418 should prioritize immediate patching of the Watu Pro plugin to version 4.9.0.8 or later, which contains the necessary CSRF protection mechanisms. Organizations should implement network-level controls including web application firewalls that can detect and block suspicious requests targeting the plugin's quiz deletion endpoints. The implementation of proper CSRF token validation should be enforced throughout the plugin's administrative interface, ensuring that all state-changing operations require valid authentication tokens. Security monitoring should be enhanced to detect unusual patterns in quiz deletion activities, particularly during off-hours or from unusual IP addresses. Regular security audits of WordPress plugins should be conducted to identify similar vulnerabilities in other third-party components, as this vulnerability demonstrates a common pattern of insufficient CSRF protection in WordPress plugins. Administrators should also implement role-based access controls that limit who can perform quiz deletion operations, reducing the potential impact of successful CSRF attacks. The vulnerability highlights the importance of maintaining up-to-date plugin versions and implementing comprehensive security measures for all components of WordPress installations, particularly those handling sensitive educational content. Organizations should also consider implementing multi-factor authentication for administrative accounts and regular security training for users who have access to quiz management interfaces to reduce the risk of successful exploitation.