CVE-2024-1407 – This CSRF vulnerability in Paid Memberships Pro... (How to Fix)

Q: What is the severity of CVE-2024-1407?

CVE-2024-1407 has a CVSS score of 5.4 (MEDIUM). This CSRF vulnerability in Paid Memberships Pro WordPress plugin allows attackers to manipulate user memberships without authentication. Attackers can trick logged-in users into clicking malicious links that subscribe, modify, or cancel memberships. All WordPress sites using this plugin up to version 2.12.10 are affected.

📋 TL;DR

This CSRF vulnerability in Paid Memberships Pro WordPress plugin allows attackers to manipulate user memberships without authentication. Attackers can trick logged-in users into clicking malicious links that subscribe, modify, or cancel memberships. All WordPress sites using this plugin up to version 2.12.10 are affected.

💻 Affected Systems

Products:

Paid Memberships Pro WordPress plugin

Versions: All versions up to and including 2.12.10

Operating Systems: Any OS running WordPress

Default Config Vulnerable: ⚠️ Yes

Notes: Requires WordPress installation with the plugin active. Vulnerability exists regardless of plugin configuration settings.

📦 What is this software?

Paid Memberships Pro by Strangerstudios

View all CVEs affecting Paid Memberships Pro →

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers could mass-cancel legitimate memberships, modify subscription levels, or create unauthorized paid memberships, causing financial loss and service disruption.

🟠

Likely Case

Targeted attacks against specific users to modify their membership status or subscribe them to unwanted paid plans.

🟢

If Mitigated

With proper CSRF protections and user awareness, impact is limited to isolated incidents that can be manually corrected.

🌐 Internet-Facing: HIGH

🏢 Internal Only: LOW

🎯 Exploit Status

Public PoC: ✅ No

Weaponized: LIKELY

Unauthenticated Exploit: ⚠️ Yes

Complexity: LOW

Exploitation requires social engineering to trick authenticated users into clicking malicious links. No authentication bypass needed.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 2.12.11 and later

Vendor Advisory: https://github.com/strangerstudios/paid-memberships-pro/pull/2839

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find Paid Memberships Pro. 4. Click 'Update Now' if available. 5. Alternatively, download version 2.12.11+ from WordPress.org and manually update.

🔧 Temporary Workarounds

Temporary Plugin Deactivation

all

Disable the plugin until patched to prevent exploitation

wp plugin deactivate paid-memberships-pro

🧯 If You Can't Patch

Implement web application firewall rules to block CSRF attempts
Educate users about not clicking suspicious links while logged into the WordPress site

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Installed Plugins for Paid Memberships Pro version. If version is 2.12.10 or lower, you are vulnerable.

Check Version:

wp plugin get paid-memberships-pro --field=version

Verify Fix Applied:

After updating, verify plugin version shows 2.12.11 or higher in WordPress admin panel.

📡 Detection & Monitoring

Log Indicators:

Unusual membership changes from single IP addresses
Multiple membership modifications in short timeframes

Network Indicators:

POST requests to membership endpoints without proper nonce validation

SIEM Query:

source="wordpress.log" AND "paid-memberships-pro" AND ("membership_change" OR "subscription_modified")

📊 Metadata

CVE ID: CVE-2024-1407

CVSS v3 Score: 5.4 (MEDIUM)

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L

CWE: CWE-352

Published: June 19, 2024

Last Updated: January 17, 2025

🔗 References

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