CVE-2026-39632

Vulnerability

Overview

The Grand Blog WordPress theme, developed by ThemeGoods, contains a Cross-Site Request Forgery (CSRF) vulnerability affecting versions from n/a through 3.1. This flaw stems from insufficient validation of request origins, enabling an attacker to craft malicious requests that appear legitimate to the application [1].

Exploitation

Details

Exploitation requires user interaction — a privileged user (higher) privileged user must click a malicious link, visit a crafted page, or submit a form while authenticated to the WordPress site. The attacker does not need direct access to the target site but can initiate the attack remotely, relying on the victim's active session [1].

Impact

Successful CSRF attacks can force the victim to perform unintended actions under their current authentication level, such as changing settings, modifying content, or creating new admin accounts. This could lead to partial loss of integrity and availability, though the CVSS score of 6.5 (Medium) reflects the need for user interaction and the limited scope of direct data exposure [1].

Mitigation

The vendor has not released a patch; users are advised to update the theme immediately if a patched version becomes available. As a workaround, site administrators can implement additional CSRF protections, such as custom nonces or request origin checks, or consult their hosting provider for assistance [1].