CVE-2025-31765

5.3 MEDIUM

📋 TL;DR

This CVE describes a Missing Authorization vulnerability in the GDPR Cookie Notice WordPress plugin that allows attackers to exploit incorrectly configured access control security levels. It affects all versions up to 1.2.0, potentially enabling unauthorized access to administrative functions. WordPress sites using this plugin are vulnerable.

💻 Affected Systems

Products:
  • GDPR Cookie Notice WordPress Plugin
Versions: n/a through 1.2.0
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects WordPress installations with the GDPR Cookie Notice plugin installed and activated.

⚠️ 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 gain administrative access to the WordPress site, modify plugin settings, inject malicious code, or potentially compromise the entire site.

🟠

Likely Case

Unauthorized users could modify cookie consent settings, potentially violating GDPR compliance or altering site functionality.

🟢

If Mitigated

With proper access controls and authentication requirements, the vulnerability would be prevented from being exploited.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

The vulnerability involves broken access control, which typically requires minimal technical skill to exploit once the attack vector is identified.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.2.1 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/gdpr-cookie-notice/vulnerability/wordpress-gdpr-cookie-notice-plugin-1-2-0-broken-access-control-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find GDPR Cookie Notice and click 'Update Now' if available. 4. Alternatively, download version 1.2.1+ from WordPress repository and manually update.

🔧 Temporary Workarounds

Disable Plugin

all

Temporarily disable the vulnerable plugin until patched

wp plugin deactivate gdpr-cookie-notice

Restrict Access

linux

Implement IP-based restrictions to admin endpoints

Add to .htaccess: Order deny,allow
Deny from all
Allow from 192.168.1.0/24

🧯 If You Can't Patch

  • Implement web application firewall (WAF) rules to block unauthorized access to plugin endpoints
  • Enable strict authentication requirements for all administrative functions

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > GDPR Cookie Notice version. If version is 1.2.0 or earlier, you are vulnerable.

Check Version:

wp plugin get gdpr-cookie-notice --field=version

Verify Fix Applied:

Verify plugin version is 1.2.1 or later in WordPress admin panel.

📡 Detection & Monitoring

Log Indicators:

  • Unauthorized access attempts to /wp-admin/admin-ajax.php with gdpr-cookie-notice actions
  • Multiple failed authentication attempts followed by successful plugin modifications

Network Indicators:

  • Unusual POST requests to WordPress admin endpoints from unauthorized IPs
  • Traffic patterns suggesting automated exploitation attempts

SIEM Query:

source="wordpress.log" AND ("gdpr-cookie-notice" OR "admin-ajax.php") AND (status=200 OR status=302) AND NOT user=authenticated_admin

🔗 References

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