CVE-2025-6212 – This vulnerability allows unauthenticated attac... (How to Fix)

📋 TL;DR

This vulnerability allows unauthenticated attackers to inject malicious scripts into WordPress sites using the Ultra Addons for Contact Form 7 plugin. When administrators view form submission data in the plugin's database module, the injected scripts execute in their browsers. All WordPress sites running vulnerable plugin versions are affected.

💻 Affected Systems

Products:

Ultimate Addons for Contact Form 7 WordPress Plugin

Versions: 3.5.11 to 3.5.19

Operating Systems: All operating systems running WordPress

Default Config Vulnerable: ⚠️ Yes

Notes: Requires the Database module to be enabled (default in plugin).

📦 What is this software?

Ultimate Addons For Contact Form 7 by Themefic

View all CVEs affecting Ultimate Addons For Contact Form 7 →

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers could steal administrator session cookies, perform actions as administrators, redirect users to malicious sites, or install backdoors on the WordPress site.

🟠

Likely Case

Attackers inject malicious JavaScript to steal administrator credentials or session cookies, potentially gaining full control of the WordPress site.

🟢

If Mitigated

With proper Content Security Policy (CSP) headers and other web application firewalls, script execution could be blocked, limiting impact to data exposure.

🌐 Internet-Facing: HIGH

🏢 Internal Only: LOW

🎯 Exploit Status

Public PoC: ✅ No

Weaponized: LIKELY

Unauthenticated Exploit: ⚠️ Yes

Complexity: LOW

Exploitation requires submitting forms with malicious field names and waiting for administrators to view the data.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 3.5.20

Vendor Advisory: https://wordpress.org/plugins/ultimate-addons-for-contact-form-7/#developers

Restart Required: No

Instructions:

1. Log into WordPress admin panel
2. Navigate to Plugins → Installed Plugins
3. Find 'Ultimate Addons for Contact Form 7'
4. Click 'Update Now' if available
5. If not, download version 3.5.20+ from WordPress.org
6. Deactivate old version
7. Upload and activate new version

🔧 Temporary Workarounds

Disable Database Module

all

Temporarily disable the vulnerable database module until patched

Navigate to Contact Form 7 → Ultimate Addons → Database → Disable

Implement Content Security Policy

all

Add CSP headers to prevent script execution from untrusted sources

Add to .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self'"
Or configure via WordPress security plugin

🧯 If You Can't Patch

Disable the entire Ultimate Addons for Contact Form 7 plugin
Implement a web application firewall (WAF) with XSS protection rules

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin → Plugins → Ultimate Addons for Contact Form 7 → Version. If between 3.5.11 and 3.5.19, vulnerable.

Check Version:

wp plugin list --name='ultimate-addons-for-contact-form-7' --field=version

Verify Fix Applied:

Verify plugin version is 3.5.20 or higher in WordPress admin panel.

📡 Detection & Monitoring

Log Indicators:

Unusual form submissions with JavaScript in field names
Multiple AJAX requests to /wp-admin/admin-ajax.php with action=ajax_get_table_data

Network Indicators:

POST requests to contact forms containing script tags in field names
Admin AJAX requests returning unexpected JavaScript in JSON responses

SIEM Query:

source="wordpress.log" AND ("ajax_get_table_data" OR "database-pro-main.js") AND ("<script>" OR "javascript:")

📊 Metadata

CVE ID: CVE-2025-6212

CVSS v3 Score: 7.2 (HIGH)

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

CWE: CWE-79

EPSS Score: 0.17% exploit probability (38.8th percentile)

Published: June 26, 2025

Last Updated: July 8, 2025

🔗 References

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