CVE-2025-58594: Brizy WordPress Plugin Auth Bypass Flaw

CVE-2025-58594 Overview

CVE-2025-58594 is a missing authorization vulnerability in the Brizy page builder plugin for WordPress, developed by themefusecom. The flaw stems from incorrectly configured access control security levels in plugin functionality. Authenticated users with low privileges can invoke actions that should require higher authorization. The issue affects all Brizy versions up to and including 2.7.12. The vulnerability is tracked under CWE-862: Missing Authorization.

Critical Impact

Authenticated attackers with low-level privileges can bypass access control checks in the Brizy plugin and perform actions that modify data outside their intended permission scope.

Affected Products

• Brizy WordPress plugin by themefusecom
• Versions from n/a through 2.7.12 (inclusive)
• WordPress sites using vulnerable Brizy installations

Discovery Timeline

• 2025-09-03 - CVE-2025-58594 published to the National Vulnerability Database
• 2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-58594

Vulnerability Analysis

The Brizy plugin exposes functionality that fails to enforce proper capability or role checks before executing sensitive operations. An authenticated user with a low-privilege role can send requests to plugin endpoints and trigger actions reserved for higher-privilege users. The attack is remotely exploitable over the network and requires user authentication but no user interaction. Successful exploitation results in integrity impact against plugin-managed data, without direct confidentiality or availability consequences. The EPSS probability of exploitation is 0.236% at the 14.83 percentile, reflecting low observed exploitation interest.

Root Cause

The root cause is a broken access control implementation in the plugin's request handlers. Specific actions lack current_user_can() capability checks or nonce validation tied to a privileged role. WordPress plugins that rely on authentication alone, without verifying the specific capability required for an action, exhibit this class of flaw. The vulnerability maps to CWE-862 (Missing Authorization).

Attack Vector

An attacker with any authenticated account on a vulnerable WordPress site can issue crafted HTTP requests to Brizy plugin endpoints. Because the endpoints do not validate whether the caller holds the required capability, the server executes the requested action. The result is unauthorized modification of Brizy-managed content or configuration. Refer to the Patchstack Brizy Plugin Vulnerability advisory for further technical details.

Detection Methods for CVE-2025-58594

Indicators of Compromise

• Unexpected modifications to Brizy-managed pages, templates, or plugin settings performed by low-privilege accounts such as Subscribers or Contributors.
• HTTP requests to Brizy admin-ajax.php actions or REST routes originating from users whose roles should not permit those operations.
• Creation, editing, or deletion events in WordPress audit logs correlated with non-editor accounts.

Detection Strategies

• Enable a WordPress activity log plugin and monitor for Brizy-related actions performed by users below the Editor role.
• Inspect web server access logs for POST requests to Brizy endpoints followed by unexpected content changes.
• Correlate authentication events with plugin action calls to identify privilege boundary violations.

Monitoring Recommendations

• Alert on any Brizy plugin write operation initiated by an account without the edit_pages capability.
• Track version metadata for the Brizy plugin across the fleet to identify hosts still running 2.7.12 or earlier.
• Feed WordPress and web server telemetry into a centralized log platform for cross-account behavioral analysis.

How to Mitigate CVE-2025-58594

Immediate Actions Required

• Update the Brizy plugin to a version later than 2.7.12 once the vendor publishes a fixed release.
• Audit existing WordPress user accounts and remove or downgrade unnecessary low-privilege accounts.
• Review recent Brizy-managed content for unauthorized modifications and restore from clean backups if tampering is confirmed.

Patch Information

The Patchstack advisory tracks the vulnerable range as up to and including Brizy 2.7.12. Site operators should monitor the plugin's changelog and apply the vendor-supplied patched release as soon as it becomes available.

Workarounds

• Deactivate the Brizy plugin on affected sites until a patched version is installed.
• Restrict registration to trusted users and disable open user registration where feasible.
• Deploy a Web Application Firewall (WAF) rule that blocks unauthenticated or low-privileged access to Brizy plugin endpoints.

# Configuration example: disable open registration and enforce role checks via wp-cli
wp option update users_can_register 0
wp option update default_role subscriber
wp plugin deactivate brizy