CVE-2025-12132: WordPress Custom Admin Login CSRF Flaw

CVE-2025-12132 Overview

CVE-2025-12132 affects the WP Custom Admin Login Page Logo plugin for WordPress in all versions up to and including 1.4.8.4. The vulnerability is a Cross-Site Request Forgery (CSRF) flaw classified under [CWE-352]. It stems from missing or incorrect nonce validation on the wpclpl_save functionality. Unauthenticated attackers can modify plugin settings by tricking a site administrator into clicking a crafted link or visiting a malicious page.

Critical Impact
Successful exploitation allows attackers to alter plugin configuration on the WordPress admin login page without authentication, provided an administrator interacts with the attacker-supplied link.

Affected Products

WP Custom Admin Login Page Logo plugin for WordPress
All versions up to and including 1.4.8.4
WordPress sites where the plugin is installed and active

Discovery Timeline

2025-11-11 - CVE-2025-12132 published to the National Vulnerability Database (NVD)
2026-06-17 - Last updated in the NVD database

Technical Details for CVE-2025-12132

Vulnerability Analysis

The vulnerability is a Cross-Site Request Forgery (CSRF) issue in the wpclpl_save handler of the WP Custom Admin Login Page Logo plugin. WordPress plugins typically protect state-changing actions with nonces generated by wp_create_nonce() and verified with check_admin_referer() or wp_verify_nonce(). This plugin does not properly validate a nonce before processing settings updates.

The attack requires user interaction. An attacker must convince an authenticated WordPress administrator to visit a malicious page or click a link. Once triggered, the browser submits a request to the vulnerable endpoint using the administrator's active session cookies. The plugin accepts the request as legitimate and applies attacker-controlled settings.

The EPSS probability score for this CVE is 0.122%.

Root Cause

The root cause is missing or incorrect nonce validation on the wpclpl_save action. Without nonce checks, the plugin cannot distinguish between a request initiated by an administrator inside the WordPress admin interface and a request forged by an external site abusing the administrator's session.

Attack Vector

The attack vector is network-based and requires social engineering. The attacker hosts a page containing a hidden form or JavaScript that auto-submits a request to the target WordPress site. If the administrator is authenticated and visits the page, the request executes with administrative privileges. The vulnerability does not permit direct code execution, but it allows unauthorized modification of plugin settings, which affects the branding and appearance of the WordPress login page.

No verified proof-of-concept code is publicly available. See the Wordfence Vulnerability Report for additional technical detail.

Detection Methods for CVE-2025-12132

Indicators of Compromise

Unexpected changes to the WordPress admin login page logo, URL, or associated branding settings
HTTP POST requests to admin endpoints referencing wpclpl_save originating from external Referer headers
Administrator session activity coinciding with visits to untrusted external sites

Detection Strategies

Review web server access logs for POST requests targeting plugin admin endpoints with off-site Referer values
Audit WordPress option changes tied to the wp-custom-login-page-logo plugin using database change tracking
Correlate administrator browser activity with plugin configuration changes to identify forged requests

Monitoring Recommendations

Enable file integrity monitoring on the WordPress wp-content/plugins/wp-custom-login-page-logo/ directory
Log and alert on modifications to wp_options rows associated with the plugin
Deploy a Web Application Firewall (WAF) rule to inspect and block cross-origin POST requests to WordPress admin actions lacking a valid Referer or nonce

How to Mitigate CVE-2025-12132

Immediate Actions Required

Update the WP Custom Admin Login Page Logo plugin to a version newer than 1.4.8.4 once the vendor releases a patched build
Deactivate and remove the plugin if a patched version is not yet available and the functionality is non-essential
Instruct administrators to log out of WordPress sessions before browsing untrusted external sites

Patch Information

At the time of the last NVD update on 2026-06-17, no fixed version was listed in the enriched data. Consult the WordPress plugin page and the Wordfence Vulnerability Report for current release information and vendor guidance.

Workarounds

Restrict /wp-admin/ access by IP address using web server or firewall rules to limit exposure of administrator sessions
Deploy a WordPress security plugin that enforces CSRF protection and validates Referer headers on admin actions
Require administrators to use isolated browser profiles or dedicated browsers for WordPress management to reduce cross-site request risk

bash

# Example nginx configuration to restrict wp-admin access by IP
location ^~ /wp-admin/ {
    allow 203.0.113.0/24;
    deny all;
    try_files $uri $uri/ /index.php?$args;
}