CVE-2025-67945

9.3 CRITICAL

📋 TL;DR

This SQL injection vulnerability in the MailerLite WooCommerce integration plugin allows attackers to execute arbitrary SQL commands on the WordPress database. It affects all WooCommerce sites using the MailerLite plugin version 3.1.2 or earlier. Successful exploitation could lead to data theft, modification, or complete database compromise.

💻 Affected Systems

Products:
  • MailerLite - WooCommerce integration (woo-mailerlite)
Versions: n/a through <= 3.1.2
Operating Systems: All
Default Config Vulnerable: ⚠️ Yes
Notes: Affects WordPress installations with WooCommerce and the MailerLite plugin enabled.

⚠️ 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

Complete database compromise including sensitive customer data (PII, payment info), privilege escalation to admin, and potential site takeover.

🟠

Likely Case

Data exfiltration of customer information, order history, and potentially stored payment data if not properly encrypted.

🟢

If Mitigated

Limited impact if database permissions are restricted and input validation is enforced elsewhere.

🌐 Internet-Facing: HIGH
🏢 Internal Only: LOW

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

SQL injection vulnerabilities in WordPress plugins are commonly exploited quickly after disclosure.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: >3.1.2

Vendor Advisory: https://patchstack.com/database/Wordpress/Plugin/woo-mailerlite/vulnerability/wordpress-mailerlite-woocommerce-integration-plugin-3-1-2-sql-injection-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'MailerLite - WooCommerce integration'. 4. Click 'Update Now' if available. 5. If no update appears, manually download latest version from WordPress repository and replace plugin files.

🔧 Temporary Workarounds

Disable vulnerable plugin

all

Temporarily disable the MailerLite WooCommerce integration plugin until patched.

wp plugin deactivate woo-mailerlite

Web Application Firewall (WAF)

all

Deploy WAF rules to block SQL injection patterns targeting this plugin.

🧯 If You Can't Patch

  • Implement strict input validation and parameterized queries in custom code
  • Restrict database user permissions to minimum required operations

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Installed Plugins for MailerLite - WooCommerce integration version.

Check Version:

wp plugin get woo-mailerlite --field=version

Verify Fix Applied:

Confirm plugin version is >3.1.2 in WordPress admin panel.

📡 Detection & Monitoring

Log Indicators:

  • Unusual SQL queries in WordPress/database logs
  • Multiple failed login attempts from single IP
  • Unexpected database schema changes

Network Indicators:

  • HTTP requests with SQL syntax in parameters to WooCommerce/MailerLite endpoints
  • Unusual outbound database connections

SIEM Query:

source="wordpress.log" AND "woo-mailerlite" AND ("SELECT" OR "UNION" OR "INSERT" OR "UPDATE" OR "DELETE")

🔗 References

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