CVE-2025-4104: WordPress Frontend Dashboard Plugin Vuln

CVE-2025-4104 Overview

The Frontend Dashboard plugin for WordPress contains a critical privilege escalation vulnerability that allows unauthenticated attackers to take complete control of WordPress administrator accounts. The vulnerability exists in the fed_wp_ajax_fed_login_form_post() function in versions 1.0 through 2.2.6, where a missing capability check enables attackers to reset the administrator's email and password without any authentication, effectively granting them full administrative access to the affected WordPress installation.

Critical Impact

Unauthenticated attackers can reset administrator credentials and take complete control of WordPress sites running vulnerable versions of the Frontend Dashboard plugin.

Affected Products

• Frontend Dashboard plugin for WordPress versions 1.0 to 2.2.6
• WordPress installations with the vulnerable plugin activated
• All WordPress sites using Frontend Dashboard for user management

Discovery Timeline

• May 7, 2025 - CVE-2025-4104 published to NVD
• May 7, 2025 - Last updated in NVD database

Technical Details for CVE-2025-4104

Vulnerability Analysis

This vulnerability is classified under CWE-285 (Improper Authorization), which occurs when an application fails to properly enforce access restrictions on resources or functions. In the case of CVE-2025-4104, the fed_wp_ajax_fed_login_form_post() function lacks essential capability checks that would normally verify whether a user has the appropriate permissions to perform sensitive account modifications.

The vulnerability is network-accessible and requires no authentication or user interaction to exploit. An attacker can remotely invoke the vulnerable AJAX endpoint and manipulate administrator account credentials without any prior access to the WordPress installation. Once exploited, the attacker gains full administrative control, allowing them to modify site content, install malicious plugins, access sensitive data, or use the compromised site for further attacks.

Root Cause

The root cause of this vulnerability is the absence of proper capability checking in the login form processing function. WordPress provides built-in functions like current_user_can() and capability checks that should be implemented on any administrative or privileged operations. The fed_wp_ajax_fed_login_form_post() function fails to verify that the requesting user has appropriate permissions before allowing password and email reset operations on administrator accounts.

The vulnerable code is located in the login handling files within the plugin structure at includes/frontend/request/login/. The function processes AJAX requests without validating the source or permissions, treating all requests as legitimate regardless of authentication status.

Attack Vector

The attack is performed over the network through WordPress's AJAX interface. An unauthenticated attacker can craft a malicious request to the vulnerable endpoint, specifying the administrator's account as the target. The request modifies the administrator's email address and password, allowing the attacker to:

1. Target the WordPress AJAX handler with a specially crafted POST request
2. Invoke the fed_wp_ajax_fed_login_form_post() function
3. Reset the administrator's email to an attacker-controlled address
4. Reset the administrator's password to a known value
5. Log in with the new credentials and gain full administrative access

The vulnerability is particularly dangerous because it requires no prior access, no user interaction, and can be exploited remotely by anyone who can reach the WordPress installation over the network.

Detection Methods for CVE-2025-4104

Indicators of Compromise

• Unexpected password reset or email change notifications for administrator accounts
• Administrator accounts with recently modified email addresses pointing to unfamiliar domains
• Suspicious AJAX requests targeting the fed_wp_ajax_fed_login_form_post action in web server logs
• Unauthorized administrative logins from unfamiliar IP addresses or geolocations

Detection Strategies

• Monitor WordPress AJAX endpoints for high-volume or suspicious requests targeting fed_wp_ajax_fed_login_form_post
• Implement web application firewall (WAF) rules to detect and block unauthorized credential reset attempts
• Review plugin versions to identify installations running Frontend Dashboard versions 1.0 through 2.2.6
• Enable WordPress audit logging to track administrative account modifications

Monitoring Recommendations

• Configure alerting for any changes to administrator account credentials or email addresses
• Monitor authentication logs for administrator logins from new devices or IP addresses
• Implement real-time log analysis to detect patterns consistent with privilege escalation attempts
• Review WordPress user modification timestamps regularly to identify unauthorized changes

How to Mitigate CVE-2025-4104

Immediate Actions Required

• Update the Frontend Dashboard plugin to version 2.2.7 or later immediately
• Audit all administrator accounts for unauthorized email or password changes
• Review recent login activity for administrator accounts and revoke any suspicious sessions
• Reset administrator passwords for all affected WordPress installations as a precaution

Patch Information

The vulnerability has been patched in Frontend Dashboard version 2.2.7. The fix introduces proper capability checking in the login validation functionality. Site administrators should update immediately through the WordPress plugin management interface or by downloading the latest version from the WordPress Plugin Directory. The changeset 3288562 contains the security fix that addresses this vulnerability.

Additional technical details about the fix can be found in the updated validation code.

Workarounds

• Temporarily deactivate the Frontend Dashboard plugin until the update can be applied
• Implement IP-based access restrictions on WordPress AJAX endpoints at the web server level
• Deploy a web application firewall (WAF) with rules to block unauthorized credential modification requests
• Enable WordPress two-factor authentication for all administrator accounts to add an additional layer of security

# Verify installed Frontend Dashboard version
wp plugin get frontend-dashboard --field=version

# Update Frontend Dashboard to the latest secure version
wp plugin update frontend-dashboard

# Alternatively, deactivate the plugin until patching is possible
wp plugin deactivate frontend-dashboard