CVE-2026-3829: Data Modification in WP Encryption Plugin

An attacker exploiting CVE-2026-3829 could significantly compromise the security posture of a WordPress site. By resetting the SSL setup state, they can effectively bypass SSL/HTTPS enforcement, potentially exposing sensitive data transmitted over the site. Furthermore, the ability to modify plan selection options could lead to unauthorized access to premium features or services, or even fraudulent charges. This vulnerability essentially allows an attacker to impersonate a legitimate user and manipulate the site's security settings, creating a significant risk of data breaches and unauthorized access. The blast radius extends to any data processed or transmitted through the affected WordPress site.

1. 予約済み2026-03-09
2. 公開日2026-05-14

The primary mitigation for CVE-2026-3829 is to immediately upgrade the WP Encryption plugin to version 7.8.5.11 or later. If upgrading is not immediately feasible due to compatibility issues or breaking changes, consider temporarily disabling the plugin to prevent further exploitation. While a direct workaround isn't available, restricting user roles and permissions to limit access to the plugin's configuration settings can reduce the attack surface. Regularly review user roles and ensure that only authorized personnel have access to sensitive plugin settings. After upgrading, verify the SSL configuration and plan selections to ensure they are accurate and haven't been tampered with.