CVE-2023-36506

5.3 MEDIUM

📋 TL;DR

This CVE describes a missing authorization vulnerability in the YITH WooCommerce Waiting List plugin for WordPress. It allows attackers to bypass access controls and potentially manipulate waiting list functionality. All WordPress sites using affected versions of this plugin are vulnerable.

💻 Affected Systems

Products:
  • YITH WooCommerce Waiting List
Versions: All versions through 2.13.0
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Affects WordPress installations with WooCommerce and the YITH Waiting List 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

Attackers could modify waiting list entries, expose customer email addresses, or manipulate product availability notifications.

🟠

Likely Case

Unauthorized users accessing waiting list management functions, potentially viewing or modifying customer subscription data.

🟢

If Mitigated

Proper user role validation prevents unauthorized access, limiting impact to legitimate administrative functions only.

🌐 Internet-Facing: HIGH - WordPress sites are typically internet-facing, and the plugin is widely used in e-commerce environments.
🏢 Internal Only: MEDIUM - Internal WordPress installations with the plugin would still be vulnerable to authenticated attacks.

🎯 Exploit Status

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

Exploitation requires some level of WordPress user access but bypasses authorization checks for waiting list functions.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 2.14.0 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/yith-woocommerce-waiting-list/vulnerability/wordpress-yith-woocommerce-waitlist-plugin-2-6-0-broken-access-control-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find YITH WooCommerce Waiting List. 4. Click 'Update Now' if available. 5. Alternatively, download version 2.14.0+ from WordPress.org and manually update.

🔧 Temporary Workarounds

Disable Plugin

all

Temporarily disable the vulnerable plugin until patching is possible

wp plugin deactivate yith-woocommerce-waiting-list

Restrict User Roles

all

Limit WordPress user accounts with access to waiting list management functions

🧯 If You Can't Patch

  • Implement web application firewall rules to block suspicious waiting list API requests
  • Enable detailed logging for all waiting list-related actions and monitor for unauthorized access

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin > Plugins > YITH WooCommerce Waiting List version. If version is 2.13.0 or lower, you are vulnerable.

Check Version:

wp plugin get yith-woocommerce-waiting-list --field=version

Verify Fix Applied:

Verify plugin version is 2.14.0 or higher in WordPress admin panel.

📡 Detection & Monitoring

Log Indicators:

  • Unauthorized access attempts to waiting list endpoints
  • Unexpected waiting list modifications by non-admin users

Network Indicators:

  • HTTP requests to /wp-admin/admin-ajax.php with waiting list action parameters from unauthorized IPs

SIEM Query:

source="wordpress.log" AND ("yith_waitlist" OR "waiting_list") AND user_role!="administrator"

🔗 References

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