CVE-2025-30879

7.6 HIGH

📋 TL;DR

This SQL injection vulnerability in the MC Woocommerce Wishlist WordPress plugin allows attackers to execute arbitrary SQL commands on the database. It affects all WordPress sites using this plugin from any version up to 1.8.9. Successful exploitation could lead to data theft, modification, or deletion.

💻 Affected Systems

Products:
  • MC Woocommerce Wishlist WordPress plugin
Versions: All versions up to and including 1.8.9
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Affects all WordPress installations with this plugin enabled. No special configuration required for exploitation.

⚠️ 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), administrative takeover of WordPress site, and potential server compromise if database permissions allow file system access.

🟠

Likely Case

Data exfiltration of user information, wishlist contents, and potentially WooCommerce order data. Attackers could modify or delete database content.

🟢

If Mitigated

Limited impact with proper database user permissions, query parameterization, and web application firewall rules blocking SQL injection patterns.

🌐 Internet-Facing: HIGH - WordPress plugins are typically internet-facing and this vulnerability allows direct database manipulation through web requests.
🏢 Internal Only: LOW - This is a WordPress plugin vulnerability primarily affecting public-facing websites, not internal systems.

🎯 Exploit Status

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

SQL injection typically requires some knowledge of the database structure but automated tools exist. The Patchstack advisory suggests authentication may be required.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Version after 1.8.9 (check plugin repository for latest)

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/smart-wishlist-for-more-convert/vulnerability/wordpress-mc-woocommerce-wishlist-plugin-1-8-9-sql-injection-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'MC Woocommerce Wishlist'. 4. Click 'Update Now' if available. 5. If no update available, deactivate and delete the plugin immediately.

🔧 Temporary Workarounds

Temporary plugin deactivation

WordPress

Disable the vulnerable plugin until patched version is available

wp plugin deactivate mc-woocommerce-wishlist

🧯 If You Can't Patch

  • Implement a web application firewall (WAF) with SQL injection rules
  • Restrict database user permissions to minimum required operations

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin → Plugins → Installed Plugins for 'MC Woocommerce Wishlist' version 1.8.9 or earlier

Check Version:

wp plugin get mc-woocommerce-wishlist --field=version

Verify Fix Applied:

Verify plugin version is greater than 1.8.9 in WordPress admin panel

📡 Detection & Monitoring

Log Indicators:

  • Unusual SQL error messages in WordPress debug logs
  • Multiple failed SQL queries with unusual patterns
  • Requests to wishlist endpoints with SQL syntax in parameters

Network Indicators:

  • HTTP requests containing SQL keywords (SELECT, UNION, INSERT, etc.) in parameters
  • Unusual traffic patterns to /wp-content/plugins/mc-woocommerce-wishlist/

SIEM Query:

source="wordpress.log" AND ("SQL syntax" OR "mysql_fetch" OR "mc-woocommerce-wishlist")

🔗 References

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