CVE-2025-39426

4.3 MEDIUM

📋 TL;DR

A Cross-Site Request Forgery (CSRF) vulnerability in the illow - Cookies Consent WordPress plugin allows attackers to trick authenticated administrators into performing unintended actions. This affects WordPress sites using the plugin from any version up to and including 0.2.0. The vulnerability could allow attackers to modify plugin settings without the administrator's knowledge.

💻 Affected Systems

Products:
  • illow - Cookies Consent WordPress plugin
Versions: n/a through 0.2.0
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires an authenticated administrator to be tricked into visiting a malicious page while logged into WordPress.

⚠️ Manual Verification Required

This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.

Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).

🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers could modify cookie consent settings to disable privacy protections, inject malicious scripts, or change site behavior for all visitors.

🟠

Likely Case

Attackers trick administrators into changing plugin settings that affect user privacy or site functionality.

🟢

If Mitigated

With proper CSRF protections and user awareness, the risk is limited to unsuccessful exploitation attempts.

🌐 Internet-Facing: HIGH
🏢 Internal Only: LOW

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: LOW

CSRF attacks are well-understood and relatively easy to implement once the vulnerable endpoint is identified.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Versions after 0.2.0

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/lgpd-compliant-cookie-banner/vulnerability/wordpress-illow-cookies-consent-plugin-0-2-0-cross-site-request-forgery-csrf-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel
2. Navigate to Plugins > Installed Plugins
3. Find 'illow - Cookies Consent'
4. Check for available updates
5. Update to latest version
6. Verify plugin is active and functioning

🔧 Temporary Workarounds

Implement CSRF Protection

all

Add nonce verification to plugin forms and AJAX requests

Requires code modification: Add wp_nonce_field() to forms and check_admin_referer() or wp_verify_nonce() to form processing

Disable Plugin

linux

Temporarily disable the vulnerable plugin until patched

wp plugin deactivate illow-cookies-consent

🧯 If You Can't Patch

  • Restrict administrator access to trusted networks only
  • Implement strict Content Security Policy (CSP) headers

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin > Plugins > Installed Plugins for 'illow - Cookies Consent' version 0.2.0 or earlier

Check Version:

wp plugin list --name='illow - Cookies Consent' --field=version

Verify Fix Applied:

Verify plugin version is higher than 0.2.0 in WordPress admin panel

📡 Detection & Monitoring

Log Indicators:

  • Multiple failed CSRF token validations
  • Unexpected plugin setting changes from unusual IPs

Network Indicators:

  • POST requests to wp-admin/admin-ajax.php without proper referrer headers
  • Requests with predictable parameter patterns

SIEM Query:

source="wordpress" AND (uri_path="/wp-admin/admin-ajax.php" OR uri_path="/wp-admin/admin-post.php") AND (action="illow_" OR plugin="illow")

🔗 References

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