CVE-2024-13810
📋 TL;DR
This vulnerability allows authenticated WordPress users with Subscriber-level access or higher to import demo content and overwrite the site through AJAX actions. It affects all versions of the Zass WooCommerce theme up to 3.9.9.10. The issue stems from missing capability checks on the 'zass_import_zass' AJAX endpoint.
💻 Affected Systems
- Zass - WooCommerce Theme for Handmade Artists and Artisans
⚠️ 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.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
An attacker could completely overwrite the WordPress site with demo content, destroying existing content, configurations, and potentially injecting malicious code.
Likely Case
Attackers with subscriber accounts could disrupt site operations by importing unwanted demo content, causing service disruption and content loss.
If Mitigated
With proper user access controls and theme updates, the risk is limited to authorized administrative actions only.
🎯 Exploit Status
Exploitation requires authenticated access but is straightforward once an attacker has subscriber-level credentials.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version 3.9.9.11 or later
Vendor Advisory: https://themeforest.net/item/zass-wordpress-woocommerce-theme/19614113
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Appearance > Themes. 3. Update the Zass theme to version 3.9.9.11 or later. 4. Verify the update completed successfully.
🔧 Temporary Workarounds
Disable vulnerable AJAX endpoint
allRemove or disable the vulnerable 'zass_import_zass' AJAX action handler
Add to theme's functions.php: remove_action('wp_ajax_zass_import_zass', 'zass_import_zass'); remove_action('wp_ajax_nopriv_zass_import_zass', 'zass_import_zass');
Restrict user roles
allTemporarily restrict Subscriber role capabilities or remove unnecessary subscriber accounts
Use WordPress role management plugins or custom code to restrict AJAX capabilities for subscriber roles
🧯 If You Can't Patch
- Implement strict user access controls and monitor for suspicious AJAX requests
- Disable the Zass theme and switch to a secure alternative theme
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Appearance > Themes for Zass theme version 3.9.9.10 or earlierCheck Version:
WordPress CLI: wp theme list --field=name,version | grep zassVerify Fix Applied:
Confirm Zass theme version is 3.9.9.11 or later in WordPress admin📡 Detection & Monitoring
Log Indicators:
- Unusual AJAX requests to wp-admin/admin-ajax.php with action=zass_import_zass
- Multiple content import operations from non-admin users
Network Indicators:
- POST requests to /wp-admin/admin-ajax.php with zass_import_zass parameter from unexpected IPs
SIEM Query:
source="wordpress" AND uri="/wp-admin/admin-ajax.php" AND post_data="action=zass_import_zass" AND user_role!="administrator"