CVE-2022-3632 is a Cross-Site Request Forgery (CSRF) vulnerability identified in the OAuth Client plugin developed by DigitialPixies for WordPress, specifically affecting version 1.1.0. The vulnerability arises because the plugin lacks proper CSRF token validation in certain parts of its implementation. CSRF vulnerabilities allow attackers to trick authenticated users into unknowingly executing unwanted actions on a web application where they are logged in. In this case, an attacker could craft malicious requests that, when visited or triggered by a logged-in user, cause the OAuth Client plugin to perform actions without the user's consent or knowledge. The vulnerability does not require the attacker to have any privileges (no authentication required) but does require that the victim is authenticated and interacts with the malicious content (user interaction required). The CVSS 3.1 base score is 6.5 (medium severity), reflecting that the attack vector is network-based, with low attack complexity, no privileges required, but user interaction is necessary. The impact is limited to integrity, meaning unauthorized actions could be performed, potentially altering configurations or linked accounts, but confidentiality and availability are not directly affected. There are no known exploits in the wild, and no official patches or updates have been linked yet. The plugin is used within WordPress environments to facilitate OAuth authentication flows, which are critical for secure user authentication and authorization. The lack of CSRF protections in this plugin could allow attackers to manipulate OAuth tokens or authorization states, potentially leading to unauthorized account linkages or privilege escalations within the affected WordPress sites.

For European organizations using WordPress sites with the OAuth Client by DigitialPixies plugin version 1.1.0, this vulnerability could lead to unauthorized actions being performed on their websites without their consent. This could include unauthorized changes to OAuth configurations, linking attacker-controlled accounts, or other integrity violations that may compromise the trustworthiness of authentication mechanisms. While confidentiality and availability impacts are minimal, the integrity compromise could facilitate further attacks such as privilege escalation or unauthorized access to connected services. Organizations relying on OAuth for single sign-on or third-party integrations may face disruptions or security breaches stemming from manipulated OAuth flows. Given the widespread use of WordPress across European businesses, especially in sectors like e-commerce, media, and public services, this vulnerability could undermine user trust and lead to regulatory compliance issues under GDPR if unauthorized access or data manipulation occurs. The absence of known exploits reduces immediate risk, but the medium severity score and the critical role of OAuth in authentication warrant prompt attention.

1. Immediate mitigation should involve updating the OAuth Client by DigitialPixies plugin to a patched version once available. Since no patch links are currently provided, organizations should monitor official plugin repositories and security advisories for updates. 2. As a temporary workaround, administrators can implement Web Application Firewall (WAF) rules to detect and block suspicious CSRF-like requests targeting the plugin endpoints. 3. Review and harden OAuth client configurations to minimize privileges and restrict redirect URIs to trusted domains only. 4. Implement additional CSRF protections at the WordPress level, such as enabling nonce verification for all plugin-related actions if customizable. 5. Educate users and administrators about the risks of clicking unknown links while authenticated to reduce the likelihood of successful CSRF attacks. 6. Conduct regular security audits and penetration tests focusing on OAuth flows and plugin integrations to detect potential abuse. 7. Consider temporarily disabling the OAuth Client plugin if it is not critical to operations until a secure version is available.