CVE-2025-50034: 
WordPress vulnerability analysis and mitigation

CVE-2025-50034 is a Missing Authorization (Broken Access Control) vulnerability in the "Enhanced Blocks – Page Builder Blocks for Gutenberg" WordPress plugin developed by Mahmudul Hasan Arif. It affects all versions from n/a through 1.4.1 and allows authenticated attackers with low privileges to exploit incorrectly configured access control security levels. The vulnerability was published on June 20, 2025, and carries a CVSS v3.1 base score of 6.5 (Medium) (Feedly, Wordfence).

The root cause is classified as CWE-862 (Missing Authorization), meaning the plugin fails to properly verify whether a requesting user has the necessary permissions before performing sensitive operations. An authenticated attacker with low-level privileges (e.g., a subscriber or contributor role) can send crafted network requests to trigger restricted functionality without proper authorization checks. The attack vector is network-based, requires low privileges, low complexity, and no user interaction, making it straightforward to exploit once an attacker has any authenticated foothold on the WordPress site (Feedly).

Successful exploitation of this vulnerability results in a high integrity impact — attackers can perform unauthorized actions or modifications that should be restricted to higher-privileged users, such as administrators or editors. Confidentiality and availability are not directly impacted according to the CVSS scoring. In a WordPress context, this could allow low-privileged users to manipulate page builder blocks or site content in unauthorized ways, potentially defacing content or injecting malicious material visible to site visitors (Feedly).

1. Reconnaissance: Identify WordPress sites running the "Enhanced Blocks – Page Builder Blocks for Gutenberg" plugin version 1.4.1 or earlier using tools like WPScan or by inspecting plugin directories.
2. Obtain low-privileged access: Register or obtain credentials for a low-privileged account (e.g., subscriber or contributor) on the target WordPress site.
3. Identify unprotected endpoints: Probe the plugin's REST API endpoints or admin-ajax actions that lack proper capability checks, which are the typical attack surface for CWE-862 vulnerabilities in WordPress plugins.
4. Send unauthorized request: Craft and send an authenticated HTTP request (with valid nonce/cookie) to the vulnerable endpoint, invoking a restricted action (e.g., modifying blocks or plugin settings) that should require higher privileges.
5. Achieve unauthorized modification: The server processes the request without verifying the user's authorization level, resulting in unauthorized content or configuration changes on the site (Feedly).

• Logs: WordPress access logs showing authenticated POST requests to plugin-specific REST API endpoints (e.g., /wp-json/enhanced-blocks/) or admin-ajax.php actions from low-privileged user accounts.
• Logs: Unexpected content modifications or block changes in WordPress audit logs attributed to subscriber or contributor-level users.
• File System: Unexpected changes to page or post content managed by the Enhanced Blocks plugin, particularly if made by non-editor/non-admin accounts.
• Network: Repeated authenticated requests from the same low-privileged user account targeting plugin endpoints in a short time window, suggesting automated exploitation attempts.

Users should update the "Enhanced Blocks – Page Builder Blocks for Gutenberg" plugin to a version beyond 1.4.1 that includes the authorization fix, once a patched release is made available by the plugin author. In the interim, site administrators should consider deactivating and removing the plugin until a patch is confirmed. Additionally, restricting user registration and minimizing the number of low-privileged accounts on the WordPress site reduces the attack surface (Feedly, Wordfence).

The vulnerability was included in Wordfence's weekly WordPress vulnerability report for the period of June 16–22, 2025, indicating routine tracking by the WordPress security community. No notable individual researcher commentary, vendor statements beyond standard disclosure, or significant social media discussion has been identified for this CVE (Wordfence).