CVE-2023-41129 in Patreon Plugin
Summary
by MITRE • 11/19/2023
Cross-Site Request Forgery (CSRF) vulnerability in Patreon Patreon WordPress.This issue affects Patreon WordPress: from n/a through 1.8.6.
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Analysis
by VulDB Data Team • 12/06/2023
The CVE-2023-41129 vulnerability represents a critical cross-site request forgery weakness within the Patreon WordPress plugin ecosystem, specifically impacting versions ranging from an unspecified beginning point through version 1.8.6. This vulnerability resides within the web application's authentication and session management mechanisms, creating a significant security risk for users who rely on the plugin for their Patreon integration. The flaw allows malicious actors to exploit the absence of proper anti-CSRF protections, potentially enabling unauthorized actions to be performed on behalf of authenticated users without their knowledge or consent.
The technical implementation of this CSRF vulnerability stems from the plugin's failure to properly validate and enforce anti-CSRF tokens during critical user operations. When users perform actions such as modifying their Patreon settings, updating payment methods, or managing their subscription preferences, the plugin should verify that requests originate from legitimate user interactions rather than forged requests from external domains. Without proper token validation, attackers can craft malicious web pages or emails that, when visited by authenticated users, automatically submit requests to the Patreon plugin's endpoints. This weakness directly aligns with CWE-352, which categorizes cross-site request forgery vulnerabilities as a fundamental flaw in web application security that permits unauthorized commands execution.
The operational impact of this vulnerability extends beyond simple data manipulation to encompass potential financial losses and account compromise. An attacker exploiting this CSRF flaw could perform unauthorized actions such as changing payment information, modifying subscription tiers, or even deleting user accounts within the Patreon system. The vulnerability's scope within WordPress environments means that compromised sites could serve as entry points for broader attacks, potentially affecting other plugins or components that share the same user session. This risk is particularly concerning given that Patreon is a platform where users maintain sensitive financial information and subscription data, making the potential for unauthorized financial transactions a significant concern.
Organizations and individual users running affected versions of the Patreon WordPress plugin should immediately implement mitigations to address this vulnerability. The most effective immediate solution involves upgrading to version 1.8.7 or later, which includes proper anti-CSRF token implementation and validation mechanisms. Additionally, administrators should review their plugin update processes to ensure timely deployment of security patches. Network-level protections such as implementing Content Security Policy headers and monitoring for suspicious request patterns can provide additional defense-in-depth measures. The vulnerability's classification under the ATT&CK framework's T1548.001 technique for privilege escalation through application access highlights the importance of maintaining updated security controls and monitoring user activities for unauthorized changes.
This vulnerability demonstrates the critical importance of implementing robust anti-CSRF protections in web applications, particularly those handling sensitive user data and financial transactions. The weakness in the Patreon WordPress plugin underscores the need for comprehensive security testing, including automated scanning for common web application vulnerabilities, and regular security audits of third-party components. Organizations should maintain detailed inventories of all installed plugins and themes, ensuring that all components are regularly updated with the latest security patches and that proper vulnerability management processes are in place to identify and remediate similar issues across their digital infrastructure.