Mautic, Sensitive Information Disclosure, CVE-2023-XXX (Critical)

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How the CVE Works

The vulnerability (CVE-2023-XXX) in Mautic arises due to improper web server configuration, allowing unauthenticated access to the `.env` file. This file contains sensitive environment variables such as database credentials, API keys, and system configurations. Attackers can exploit this by simply requesting http://target-mautic-site/.env` via a web browser, leading to full exposure of critical secrets. The issue stems from missing access restrictions in Apache’s `.htaccess` or Nginx’s server blocks, failing to deny direct access to.env`. Since no authentication is required, even low-skilled attackers can harvest credentials for further attacks like database takeover or API abuse.

DailyCVE Form

Platform: Mautic
Version: <4.4.0
Vulnerability: .env exposure
Severity: Critical
Date: 2023-XX-XX

Prediction: Patch expected 2023-XX-XX

What Undercode Say:

Analytics:

  • Risk Impact: High (Credential leaks → RCE/data theft).
  • Exploit Complexity: Low (No auth, single HTTP request).
  • Affected Configs: Apache/Nginx misconfigurations.

Exploit Command:

curl -v http://victim-mautic-site/.env

Protection Commands:

Apache:

Ensure .htaccess contains:
<Files ".env">
Require all denied
</Files>

Nginx:

Add to site config:
location ~ /.env {
deny all;
return 403;
}
Reload Nginx:
sudo systemctl reload nginx

Detection Script (Python):

import requests
response = requests.get("http://target/.env")
if response.status_code == 200 and "DB_PASSWORD" in response.text:
print("Vulnerable: .env exposed")

Mitigation Checklist:

1. Update Mautic.

2. Audit server configs for `.env` restrictions.

3. Rotate all exposed credentials (DB, API).

4. Monitor logs for `.env` access attempts.

References:

  • Mautic Security Advisory: [bash]
  • CVE Details: [bash]

Sources:

Reported By: github.com
Extra Source Hub:
Undercode

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