CVE-2025-66107

5.3 MEDIUM

📋 TL;DR

This CVE describes a Missing Authorization vulnerability in the Subscriptions & Memberships for PayPal WordPress plugin that allows attackers to bypass access controls. Attackers could potentially access restricted functionality or data without proper authentication. All WordPress sites using vulnerable versions of this plugin are affected.

💻 Affected Systems

Products:
  • Subscriptions & Memberships for PayPal WordPress Plugin
Versions: All versions up to and including 1.1.7
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects WordPress installations with this specific plugin installed and activated.

⚠️ 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 access sensitive subscription data, modify membership levels, or manipulate payment settings without authorization.

🟠

Likely Case

Unauthorized users accessing subscription management features or viewing restricted membership information.

🟢

If Mitigated

Proper access controls prevent unauthorized access, limiting impact to legitimate users only.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires understanding of WordPress plugin structure but no special tools.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Version after 1.1.7

Vendor Advisory: https://patchstack.com/database/Wordpress/Plugin/subscriptions-memberships-for-paypal/vulnerability/wordpress-subscriptions-memberships-for-paypal-plugin-1-1-7-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 'Subscriptions & Memberships for PayPal'
4. Click 'Update Now' if available
5. If no update available, deactivate and remove plugin

🔧 Temporary Workarounds

Temporary Plugin Deactivation

all

Disable the vulnerable plugin until patched version is available

wp plugin deactivate subscriptions-memberships-for-paypal

🧯 If You Can't Patch

  • Implement strict network access controls to limit plugin access
  • Monitor logs for unauthorized access attempts to plugin endpoints

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel → Plugins → Subscriptions & Memberships for PayPal version number

Check Version:

wp plugin get subscriptions-memberships-for-paypal --field=version

Verify Fix Applied:

Verify plugin version is greater than 1.1.7

📡 Detection & Monitoring

Log Indicators:

  • Unauthorized access attempts to /wp-admin/admin-ajax.php with plugin-specific actions
  • Unexpected user role changes or subscription modifications

Network Indicators:

  • Unusual POST requests to plugin-specific endpoints from unauthorized IPs

SIEM Query:

source="wordpress.log" AND ("subscriptions-memberships-for-paypal" OR "paypal_subscriptions") AND (status=403 OR user_role="subscriber")

🔗 References

📤 Share & Export