CVE-2025-12783

4.3 MEDIUM

📋 TL;DR

The Premmerce Brands for WooCommerce WordPress plugin has an authorization vulnerability that allows authenticated users with Subscriber-level access or higher to modify brand permalink settings. This affects all WordPress sites using plugin versions up to 1.2.13. Attackers can change URL structures for brand pages without proper permissions.

💻 Affected Systems

Products:
  • Premmerce Brands for WooCommerce WordPress plugin
Versions: All versions up to and including 1.2.13
Operating Systems: All operating systems running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress with WooCommerce and the Premmerce Brands plugin installed. Any authenticated user (Subscriber role or higher) can exploit this vulnerability.

⚠️ 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 brand permalink settings to create SEO spam, break existing links, or redirect users to malicious sites through manipulated brand URLs.

🟠

Likely Case

Low-privilege users or compromised accounts change brand URL structures, causing broken links and SEO issues that require administrative cleanup.

🟢

If Mitigated

With proper access controls and monitoring, impact is limited to minor configuration changes that can be quickly reverted.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires authenticated access but is technically simple - attackers can send crafted POST requests to the vulnerable endpoint. The vulnerability is publicly documented with code references.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.2.14 or later

Vendor Advisory: https://plugins.trac.wordpress.org/browser/premmerce-woocommerce-brands

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Premmerce Brands for WooCommerce'. 4. Click 'Update Now' if update is available. 5. Alternatively, download version 1.2.14+ from WordPress.org and manually update.

🔧 Temporary Workarounds

Temporary capability restriction

all

Temporarily restrict access to brand settings by modifying user roles

Use WordPress role editor plugin or custom code to remove 'manage_options' capability from Subscriber and other low-level roles

🧯 If You Can't Patch

  • Remove the Premmerce Brands plugin if not essential
  • Implement web application firewall rules to block POST requests to /wp-admin/admin-ajax.php with 'action=premmerce_brands_save_settings' parameter

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin → Plugins → Premmerce Brands for WooCommerce → Version number. If version is 1.2.13 or lower, you are vulnerable.

Check Version:

wp plugin list --name="Premmerce Brands for WooCommerce" --field=version (WP-CLI) or check WordPress admin plugins page

Verify Fix Applied:

After updating, verify version shows 1.2.14 or higher in WordPress plugins list.

📡 Detection & Monitoring

Log Indicators:

  • POST requests to /wp-admin/admin-ajax.php with 'action=premmerce_brands_save_settings' from non-admin users
  • WordPress user role changes or permission escalation attempts

Network Indicators:

  • Unusual POST requests to WordPress admin-ajax endpoints from authenticated users

SIEM Query:

source="wordpress" AND uri_path="/wp-admin/admin-ajax.php" AND http_method="POST" AND form_data.action="premmerce_brands_save_settings" AND user_role!="administrator"

🔗 References

📤 Share & Export