CVE-2025-31643: WPCHURCH Privilege Escalation Vulnerability

CVE-2025-31643 Overview

An Incorrect Privilege Assignment vulnerability has been identified in the Dasinfomedia WPCHURCH WordPress plugin, a church management solution. This security flaw enables authenticated attackers to escalate their privileges beyond intended authorization levels, potentially gaining administrative access to WordPress installations running the vulnerable plugin. The vulnerability affects all versions of WPCHURCH from initial release through version 2.7.0.

Critical Impact

Authenticated attackers can escalate their privileges to gain unauthorized administrative access, potentially compromising the entire WordPress installation and sensitive church management data.

Affected Products

• Dasinfomedia WPCHURCH plugin versions through 2.7.0
• WordPress installations running vulnerable WPCHURCH versions

Discovery Timeline

• 2026-01-07 - CVE CVE-2025-31643 published to NVD
• 2026-01-08 - Last updated in NVD database

Technical Details for CVE-2025-31643

Vulnerability Analysis

This vulnerability falls under CWE-266 (Incorrect Privilege Assignment), indicating that the WPCHURCH plugin fails to properly validate or restrict privilege assignments during certain operations. When users interact with the plugin's functionality, the application does not adequately verify that the requested privilege level is appropriate for the authenticated user's current role.

The network-accessible attack vector means that exploitation can be performed remotely by any authenticated user with low privileges. No user interaction is required beyond the initial authentication, making this vulnerability particularly dangerous in multi-user WordPress environments such as churches where volunteers and staff members may have varying access levels.

Root Cause

The root cause stems from improper privilege validation within the WPCHURCH plugin's role management or user account modification functionality. The plugin appears to allow users to assign themselves or others elevated privileges without proper authorization checks, violating the principle of least privilege. This type of flaw typically occurs when developers trust user-supplied role identifiers without server-side validation against the requester's actual permissions.

Attack Vector

The attack exploits the network-accessible privilege assignment mechanism within the WPCHURCH plugin. An attacker with a low-privileged WordPress account (such as a subscriber or contributor role) can manipulate requests to the plugin to assign themselves administrator-level capabilities. This could be achieved through:

1. Intercepting and modifying role assignment requests sent to the WordPress backend
2. Directly crafting malicious requests to vulnerable plugin endpoints
3. Exploiting insecure parameter handling during user profile or registration operations

Once elevated privileges are obtained, the attacker gains full control over the WordPress installation, including the ability to access sensitive member data, modify content, install malicious plugins, or completely compromise the website.

Detection Methods for CVE-2025-31643

Indicators of Compromise

• Unexpected changes to user role assignments in the WordPress wp_usermeta table
• Audit logs showing privilege escalation events from low-privileged accounts
• New administrator accounts created through the WPCHURCH plugin interface
• Unusual activity patterns from accounts that previously had limited access

Detection Strategies

• Monitor WordPress user role changes and alert on unexpected privilege escalations
• Implement file integrity monitoring for the WPCHURCH plugin directory
• Review access logs for suspicious requests to WPCHURCH plugin endpoints
• Deploy web application firewalls (WAF) configured to detect privilege escalation attempts

Monitoring Recommendations

• Enable comprehensive WordPress activity logging with plugins like WP Activity Log
• Configure alerts for any user role modifications, particularly escalations to administrator
• Regularly audit user accounts and their assigned capabilities within WordPress
• Monitor for unauthorized access to church management administrative functions

How to Mitigate CVE-2025-31643

Immediate Actions Required

• Audit all WordPress user accounts to identify any unauthorized privilege escalations
• Temporarily restrict access to the WPCHURCH plugin functionality for non-administrator users
• Review recent user role changes in the WordPress database for suspicious activity
• Consider temporarily deactivating the WPCHURCH plugin until a patched version is available

Patch Information

Organizations should monitor the Patchstack WPChurch Vulnerability Advisory for updates on patch availability. When a security update is released, immediately update the WPCHURCH plugin to the latest version through the WordPress plugin management interface.

Workarounds

• Implement additional access control layers using WordPress security plugins
• Restrict plugin access to only trusted administrator accounts
• Enable two-factor authentication for all WordPress user accounts
• Consider implementing a WordPress application firewall to filter malicious requests
• Regularly backup WordPress installations to enable rapid recovery if compromise occurs

# WordPress user role audit command
wp user list --fields=ID,user_login,roles --format=table

# Check for recent user meta changes related to capabilities
wp db query "SELECT * FROM wp_usermeta WHERE meta_key LIKE '%capabilities%' ORDER BY umeta_id DESC LIMIT 20"