CVE-2025-12481: WP Duplicate Page Auth Bypass Vulnerability

CVE-2025-12481 Overview

CVE-2025-12481 is a missing authorization vulnerability in the WP Duplicate Page plugin for WordPress, affecting all versions up to and including 1.7. The saveSettings function does not verify that the requesting user is authorized to modify plugin configuration. Authenticated users with Contributor-level access or higher can alter settings that govern role capabilities. By reconfiguring these capabilities, attackers can duplicate and view password-protected posts that contain sensitive information. The flaw is categorized under CWE-862: Missing Authorization.

Critical Impact
Contributor-level accounts can escalate access to confidential, password-protected post content by tampering with plugin role settings.

Affected Products

WP Duplicate Page plugin for WordPress — all versions through 1.7
WordPress sites running the plugin with Contributor-level or higher user accounts
Sites relying on the plugin's default capability settings to restrict post duplication

Discovery Timeline

2025-11-18 - CVE-2025-12481 published to the National Vulnerability Database (NVD)
2026-10-18 - Last updated in NVD database

Technical Details for CVE-2025-12481

Vulnerability Analysis

The WP Duplicate Page plugin exposes a saveSettings function that persists administrative configuration. This function does not perform a capability check to confirm that the caller is authorized to modify plugin settings. Any authenticated user who can reach the endpoint can submit updated configuration values. The configuration includes the role capabilities that control which users may duplicate posts, so a low-privileged user can grant themselves duplication rights. Once the capability is enabled, the attacker invokes the duplicate action against password-protected posts and reads the cloned copy without supplying the password. The result is unauthorized disclosure of post content that site owners intended to keep restricted.

Root Cause

The root cause is the absence of an authorization check in the plugin's settings handler. The code path that updates configuration should enforce an administrator-level capability check such as current_user_can('manage_options') and validate a nonce. Neither control is applied, so authentication alone is treated as sufficient. The flaw is a classic [CWE-862] pattern: the function trusts the request origin without verifying the caller's role.

Attack Vector

Exploitation requires network access and an authenticated session with Contributor privileges or higher. The attacker sends a crafted request to the plugin's settings endpoint, modifying the capability mapping to include the Contributor role. The attacker then uses the plugin's duplication feature to clone a password-protected post. The duplicated post exposes the body content, bypassing the WordPress password-protection control. See the plugin source references for ButtonDuplicate.php and Settings.php for the vulnerable code paths.

// No verified exploit code is available for CVE-2025-12481.
// Refer to the Wordfence advisory and plugin source for technical details.

Detection Methods for CVE-2025-12481

Indicators of Compromise

Unexpected modifications to WP Duplicate Page plugin settings in wp_options entries related to role capabilities
Duplicate copies of password-protected posts created by non-administrator accounts
POST requests to the plugin's settings endpoint originating from Contributor or Author accounts
New capabilities assigned to low-privileged roles without a corresponding administrative action in the audit log

Detection Strategies

Audit the WordPress database for recent changes to role capability options and plugin settings records
Correlate post and postmeta creation events with the originating user role to flag duplication by non-privileged users
Review web server access logs for authenticated requests to the plugin's admin-ajax or settings handler from unexpected roles

Monitoring Recommendations

Enable WordPress activity logging to capture role capability changes and settings updates in real time
Alert on creation of duplicate posts whose source post has a non-empty post_password field
Track the WP Duplicate Page plugin version across sites and flag any instance running 1.7 or earlier

How to Mitigate CVE-2025-12481

Immediate Actions Required

Update the WP Duplicate Page plugin to the version released after 1.7 that addresses CVE-2025-12481
Review current role capabilities and revert any unauthorized changes to Contributor or Author roles
Audit password-protected posts for unauthorized duplicates and remove them
Restrict Contributor and Author account creation and review existing low-privileged accounts

Patch Information

The plugin maintainers published a fix in the plugin changeset that follows version 1.7. Administrators should install the patched version through the WordPress plugin updater. Additional context is available in the Wordfence vulnerability report.

Workarounds

Deactivate the WP Duplicate Page plugin until the patched version is deployed
Apply a web application firewall rule that blocks requests to the plugin's settings endpoint from non-administrator sessions
Remove duplication capabilities from Contributor and Author roles using a role management plugin

bash

# Example WP-CLI commands to disable the plugin and audit roles
wp plugin deactivate wp-duplicate-page
wp role list
wp cap list contributor