CVE-2024-54383

9.8 CRITICAL

📋 TL;DR

This vulnerability allows attackers to gain elevated privileges in WooCommerce PDF Vouchers WordPress plugin due to incorrect privilege assignment. Attackers can escalate from lower-privileged user accounts to administrator-level access. All WordPress sites using affected versions of the WooCommerce PDF Vouchers plugin are vulnerable.

💻 Affected Systems

Products:
  • WooCommerce PDF Vouchers WordPress Plugin
Versions: All versions before 4.9.9
Operating Systems: All operating systems running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WooCommerce PDF Vouchers plugin to be installed and activated on WordPress site.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete site takeover where attackers gain administrator access, can install backdoors, steal sensitive data, deface the site, or use the compromised site for further attacks.

🟠

Likely Case

Attackers gain administrative access to the WordPress site, allowing them to modify content, access customer data, and potentially compromise the entire WooCommerce store.

🟢

If Mitigated

With proper access controls and monitoring, impact is limited to detection of unauthorized access attempts and potential minor data exposure before containment.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Requires some level of user access to exploit, but privilege escalation mechanisms are typically straightforward once initial access is obtained.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 4.9.9

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/woocommerce-pdf-vouchers/vulnerability/wordpress-woocommerce-pdf-vouchers-plugin-4-9-9-broken-authentication-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'WooCommerce PDF Vouchers'. 4. Click 'Update Now' if update is available. 5. Alternatively, download version 4.9.9+ from WordPress repository and manually update.

🔧 Temporary Workarounds

Disable vulnerable plugin

all

Temporarily disable WooCommerce PDF Vouchers plugin until patched

wp plugin deactivate woocommerce-pdf-vouchers

Restrict user roles

all

Limit user account creation and review existing user permissions

🧯 If You Can't Patch

  • Implement strict access controls and monitor for unusual privilege changes
  • Deploy web application firewall rules to detect privilege escalation attempts

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > WooCommerce PDF Vouchers version number

Check Version:

wp plugin get woocommerce-pdf-vouchers --field=version

Verify Fix Applied:

Confirm plugin version is 4.9.9 or higher in WordPress admin panel

📡 Detection & Monitoring

Log Indicators:

  • Unexpected user role changes in WordPress logs
  • Administrator account creation from non-admin users
  • Unusual plugin activation/deactivation patterns

Network Indicators:

  • Unusual admin panel access patterns
  • Multiple failed login attempts followed by successful privilege escalation

SIEM Query:

source="wordpress.log" AND ("user_role_changed" OR "capabilities_modified" OR "promoted_to_admin")

🔗 References

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