CVE-2026-1394 identifies a Cross-Site Request Forgery (CSRF) vulnerability in the WP Quick Contact Us plugin for WordPress, affecting all versions up to and including 1.0. The vulnerability stems from the absence of nonce validation on the plugin's settings update endpoint, which is a security mechanism designed to ensure that requests modifying settings originate from legitimate users and not from forged requests. Without this validation, an attacker can craft a malicious link or webpage that, when visited by a site administrator, triggers unauthorized changes to the plugin's settings without their explicit consent. This attack vector requires no authentication but does require that the administrator interacts with the malicious content, such as clicking a link. The impact primarily affects the integrity of the plugin's configuration, potentially allowing attackers to alter contact form behavior or redirect communications. The CVSS v3.1 base score is 4.3 (medium severity), reflecting that the attack vector is network-based with low complexity, no privileges required, user interaction needed, and limited impact on integrity only, with no confidentiality or availability impact. No patches or exploit code are currently publicly available, and no known exploitation in the wild has been reported. The vulnerability was published on February 14, 2026, and assigned by Wordfence. This issue highlights the importance of nonce validation in WordPress plugin development to prevent CSRF attacks.

For European organizations, the primary impact of this vulnerability is the potential unauthorized modification of the WP Quick Contact Us plugin settings by attackers who can trick site administrators into clicking malicious links. This could lead to altered contact form behavior, such as redirecting inquiries to attacker-controlled addresses or disabling contact functionality, which may disrupt business communications or facilitate further social engineering attacks. While the vulnerability does not directly compromise data confidentiality or availability, the integrity of site configurations is at risk, potentially undermining trust and operational reliability. Organizations relying on this plugin for customer interactions or support could face reputational damage if attackers manipulate contact channels. Additionally, altered settings might be leveraged as a foothold for more advanced attacks if combined with other vulnerabilities. The requirement for user interaction limits the attack scope but does not eliminate risk, especially in environments where administrators frequently access untrusted content. Given the widespread use of WordPress in Europe and the popularity of contact form plugins, the vulnerability could affect a significant number of sites if unmitigated.

To mitigate this vulnerability, European organizations should first verify if they use the WP Quick Contact Us plugin and identify the affected versions (all versions up to 1.0). Since no official patch is currently available, immediate steps include restricting administrative access to trusted networks and users to reduce exposure. Administrators should be trained to recognize and avoid phishing attempts and suspicious links that could trigger CSRF attacks. Implementing web application firewalls (WAFs) with custom rules to detect and block suspicious POST requests targeting the plugin's settings endpoint can provide additional protection. Organizations can also consider temporarily disabling or replacing the plugin with alternatives that implement proper nonce validation until a patched version is released. Monitoring administrative activity logs for unusual configuration changes can help detect exploitation attempts. Developers maintaining the plugin should prioritize releasing an update that includes nonce validation on all state-changing requests. Finally, applying general WordPress security best practices, such as least privilege principles for admin accounts and regular backups, will help mitigate broader risks.