CVE-2025-58003: Javo Core Auth Bypass Vulnerability

CVE-2025-58003 Overview

CVE-2025-58003 is a missing authorization vulnerability in the javothemes Javo Core (javo-core) WordPress plugin. The flaw stems from incorrectly configured access control security levels, classified under [CWE-862]. The issue affects Javo Core versions from unspecified initial releases through 3.0.0.266. Unauthenticated attackers can reach protected functionality over the network without user interaction. The vulnerability has a limited integrity impact and does not affect confidentiality or availability of the underlying host.

Critical Impact
Unauthenticated network attackers can invoke plugin actions that should require authorization, enabling unintended modifications to WordPress site data protected by the Javo Core plugin.

Affected Products

javothemes Javo Core (javo-core) WordPress plugin
All versions up to and including 3.0.0.266
WordPress sites running the Javo Core theme framework

Discovery Timeline

2025-09-22 - CVE-2025-58003 published to the National Vulnerability Database
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-58003

Vulnerability Analysis

The Javo Core plugin exposes one or more action handlers that lack proper authorization checks. Under [CWE-862] Missing Authorization, code paths that should verify a user's capability or nonce proceed without validation. An attacker sends a crafted HTTP request to the vulnerable endpoint and the plugin executes the requested action on behalf of the unauthenticated caller. The Patchstack advisory describes the issue as broken access control affecting the plugin through version 3.0.0.266.

Root Cause

The root cause is an incorrectly configured access control security level within Javo Core. The plugin registers handlers that omit current_user_can() capability checks or WordPress nonce verification through check_ajax_referer(). Without those gates, the plugin does not distinguish between privileged administrators and anonymous callers.

Attack Vector

Exploitation requires network access to the WordPress site and no authentication or user interaction. An attacker issues an HTTP request to the vulnerable admin-ajax.php action or plugin endpoint exposed by Javo Core. The server processes the request as if it originated from an authorized actor, producing a limited integrity impact on plugin-managed data.

No public proof-of-concept, ExploitDB entry, or CISA KEV listing exists for this issue. See the Patchstack WordPress Vulnerability Report for the full technical writeup.

Detection Methods for CVE-2025-58003

Indicators of Compromise

Unauthenticated POST requests to wp-admin/admin-ajax.php referencing Javo Core action names without a valid _wpnonce parameter.
Unexpected modifications to Javo Core plugin options, posts, or metadata performed outside normal administrative sessions.
Anomalous spikes in HTTP requests to plugin endpoints under /wp-content/plugins/javo-core/.

Detection Strategies

Inventory WordPress deployments and identify sites running Javo Core version 3.0.0.266 or earlier.
Deploy web application firewall rules that flag requests to Javo Core action handlers from sessions without authenticated cookies.
Correlate access logs against WordPress audit logs to identify state changes attributed to anonymous requests.

Monitoring Recommendations

Enable WordPress audit logging plugins to capture option updates, post modifications, and privilege changes attributable to Javo Core actions.
Forward web server access logs and PHP error logs to a centralized platform for retention and correlation.
Alert on repeated admin-ajax.php requests originating from a single IP without session authentication.

How to Mitigate CVE-2025-58003

Immediate Actions Required

Identify all WordPress installations using the Javo Core plugin at version 3.0.0.266 or earlier.
Restrict administrative endpoints such as admin-ajax.php and /wp-admin/ behind a web application firewall or IP allowlist where feasible.
Review Javo Core plugin activity for signs of unauthorized changes since installation.

Patch Information

At the time of NVD publication, the Patchstack advisory lists the vulnerability as affecting Javo Core through <= 3.0.0.266. Administrators should consult the Patchstack WordPress Vulnerability Report and the javothemes vendor channel for the fixed release, and upgrade Javo Core to the patched version once available.

Workarounds

Deactivate the Javo Core plugin until a patched version is installed if the site can tolerate the loss of functionality.
Deploy virtual patching rules through a WordPress-aware WAF such as Patchstack, Wordfence, or an equivalent service.
Enforce authentication in front of wp-admin/admin-ajax.php for non-public actions using server-level access controls.

bash

# Configuration example: block unauthenticated POSTs to Javo Core AJAX actions at the nginx layer
location = /wp-admin/admin-ajax.php {
    if ($arg_action ~* "^javo_") {
        # Require an authenticated WordPress session cookie
        if ($http_cookie !~* "wordpress_logged_in_") {
            return 403;
        }
    }
    include fastcgi_params;
    fastcgi_pass php-fpm;
}