CVE-2025-23528: DD Roles Privilege Escalation Vulnerability

CVE-2025-23528 Overview

CVE-2025-23528 is a privilege escalation vulnerability in the Mosterd3d DD Roles plugin for WordPress. The flaw stems from incorrect privilege assignment [CWE-266] and affects all dd-roles plugin versions up to and including 4.1. Authenticated users with low-level permissions can elevate their roles and gain administrative capabilities on the affected WordPress site. The vulnerability is exploitable over the network with low attack complexity and requires only basic user privileges. Successful exploitation results in full compromise of site confidentiality, integrity, and availability.

Critical Impact
Authenticated attackers with low privileges can escalate to administrator and take full control of the WordPress site, including content modification, plugin installation, and arbitrary PHP execution.

Affected Products

Mosterd3d DD Roles (dd-roles) WordPress plugin
All versions from unspecified initial release through 4.1
WordPress sites running the vulnerable plugin with authenticated low-privilege user accounts

Discovery Timeline

2025-01-16 - CVE-2025-23528 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-23528

Vulnerability Analysis

The DD Roles plugin extends WordPress role and capability management. The plugin assigns privileges through logic that does not adequately validate the requesting user's authorization to grant or modify roles. This corresponds to [CWE-266] Incorrect Privilege Assignment, where the application grants permissions broader than intended.

An authenticated user with a low-privilege role, such as Subscriber or Contributor, can invoke the affected functionality to assign themselves elevated roles. Once promoted to administrator, the attacker controls the entire WordPress instance. The Patchstack advisory confirms exploitation requires only network access and a valid low-privilege account.

Root Cause

The root cause is missing or insufficient capability checks within the plugin's role assignment routines. WordPress security best practice requires verifying the current user holds edit_users or promote_users capabilities before modifying role assignments. The vulnerable code paths in dd-roles versions through 4.1 omit these checks or rely on weak nonces alone, permitting low-privilege users to alter their own or other accounts' roles.

Attack Vector

Exploitation proceeds over HTTP against the WordPress administrative endpoints exposed by the plugin. The attacker authenticates with any valid low-privilege account, then issues a crafted request to the vulnerable role management handler. The handler accepts the request and assigns the attacker an elevated role without verifying authorization. No user interaction from an administrator is required.

For technical details, see the Patchstack WordPress Plugin Vulnerability advisory.

Detection Methods for CVE-2025-23528

Indicators of Compromise

Unexpected role changes in the WordPress wp_usermeta table, particularly wp_capabilities entries promoting users to administrator
New administrator accounts created shortly after low-privilege account logins
HTTP POST requests from authenticated subscriber or contributor sessions targeting dd-roles plugin endpoints under /wp-admin/admin-ajax.php or /wp-admin/admin-post.php
Installation of unfamiliar plugins or themes following suspicious user activity

Detection Strategies

Audit WordPress role assignment events by monitoring changes to wp_capabilities in the wp_usermeta table
Enable a WordPress security audit log plugin to record role modifications and correlate them with the initiating user account
Inspect web server access logs for low-privilege users issuing requests to dd-roles plugin handlers

Monitoring Recommendations

Forward WordPress audit logs and web server logs to a centralized SIEM for correlation against user role baselines
Alert on any role escalation event where the initiating account does not hold promote_users capability
Monitor file integrity for changes under wp-content/plugins/dd-roles/ and unexpected new files under wp-content/

How to Mitigate CVE-2025-23528

Immediate Actions Required

Identify all WordPress installations running the dd-roles plugin and confirm the installed version
Deactivate and remove the DD Roles plugin if a fixed version is not available for your site
Review the user list for unauthorized administrator accounts and revoke unexpected privileges
Rotate credentials for all administrator accounts and force a password reset for low-privilege users

Patch Information

At the time of publication, the vendor advisory hosted on Patchstack covers DD Roles versions through 4.1. Administrators should consult the Patchstack advisory for the latest fixed release information and upgrade to a patched version once available.

Workarounds

Restrict user registration to trusted accounts and disable open registration in WordPress general settings
Place the WordPress admin area behind an authenticated reverse proxy or IP allowlist to limit exposure
Apply virtual patching via a Web Application Firewall (WAF) rule that blocks requests to dd-roles role assignment endpoints from non-administrator sessions

bash

# Configuration example: WordPress CLI commands to audit and remove the vulnerable plugin
wp plugin list --name=dd-roles --fields=name,status,version
wp plugin deactivate dd-roles
wp plugin delete dd-roles
wp user list --role=administrator --fields=ID,user_login,user_registered