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CVE-2024-0368

8.6 HIGH

📋 TL;DR

The Hustle WordPress plugin exposes hardcoded API keys in all versions up to 7.8.3, allowing unauthenticated attackers to extract sensitive data including personally identifiable information (PII). This affects all WordPress sites using vulnerable versions of the Hustle plugin for email marketing and lead generation.

💻 Affected Systems

Products:
  • Hustle – Email Marketing, Lead Generation, Optins, Popups WordPress plugin
Versions: All versions up to and including 7.8.3
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Vulnerability exists in default plugin configuration; no special configuration required for exploitation.

📦 What is this software?

Hustle by Wpmudev

View all CVEs affecting Hustle →

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers gain unauthorized access to integrated services (like HubSpot) using exposed API keys, leading to data exfiltration, account takeover, and potential regulatory compliance violations.

🟠

Likely Case

Unauthenticated attackers extract PII and sensitive marketing data from integrated platforms, potentially leading to data breaches and privacy violations.

🟢

If Mitigated

Limited exposure if plugin is not internet-facing or integrated services have additional authentication layers, though hardcoded keys remain a risk.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires accessing specific plugin files containing hardcoded credentials; trivial for attackers with web access.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 7.8.4 or later

Vendor Advisory: https://www.wordfence.com/threat-intel/vulnerabilities/id/e6d40b41-540d-476d-afde-970845543933

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Hustle plugin and click 'Update Now'. 4. Verify version is 7.8.4 or higher.

🔧 Temporary Workarounds

Disable Plugin

all

Temporarily disable the Hustle plugin until patched

wp plugin deactivate wordpress-popup

Restrict File Access

linux

Block access to plugin files via web server configuration

# Add to .htaccess for Apache:
<Files "hustle-hubspot-api.php">
    Order Allow,Deny
    Deny from all
</Files>
# Add to nginx config:
location ~* /inc/providers/hubspot/hustle-hubspot-api\.php$ {
    deny all;
}

🧯 If You Can't Patch

  • Immediately disable the Hustle plugin and remove it from production systems
  • Rotate all API keys for integrated services (HubSpot, etc.) that may have been exposed

🔍 How to Verify

Check if Vulnerable:

Check if file /wp-content/plugins/wordpress-popup/inc/providers/hubspot/hustle-hubspot-api.php contains hardcoded API keys or credentials

Check Version:

wp plugin get wordpress-popup --field=version

Verify Fix Applied:

Verify plugin version is 7.8.4+ and check that the mentioned file no longer contains hardcoded credentials

📡 Detection & Monitoring

Log Indicators:

  • Unusual access patterns to plugin files, especially hustle-hubspot-api.php
  • Failed authentication attempts to integrated services from unexpected sources

Network Indicators:

  • Outbound connections to HubSpot API from unauthorized sources
  • Unusual data exfiltration patterns

SIEM Query:

source="web_server" AND (url="*hustle-hubspot-api.php*" OR user_agent="*scanner*")

📊 Metadata

CVE ID: CVE-2024-0368
CVSS v3 Score: 8.6 (HIGH)
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Published: March 13, 2024
Last Updated: March 11, 2025

🔗 References

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