CVE-2025-1971 – This CVE describes a PHP Object Injection vulne... (How to Fix)

Q: What is the severity of CVE-2025-1971?

CVE-2025-1971 has a CVSS score of 7.2 (HIGH). This CVE describes a PHP Object Injection vulnerability in the Export and Import Users and Customers WordPress plugin. Authenticated attackers with Administrator-level access can exploit deserialization of untrusted input, but impact requires a separate POP chain from another plugin/theme. Only WordPress sites using this specific plugin are affected.

📋 TL;DR

This CVE describes a PHP Object Injection vulnerability in the Export and Import Users and Customers WordPress plugin. Authenticated attackers with Administrator-level access can exploit deserialization of untrusted input, but impact requires a separate POP chain from another plugin/theme. Only WordPress sites using this specific plugin are affected.

💻 Affected Systems

Products:

Export and Import Users and Customers WordPress plugin

Versions: All versions up to and including 2.6.2

Operating Systems: Any OS running WordPress

Default Config Vulnerable: ⚠️ Yes

Notes: Requires WordPress installation with the vulnerable plugin enabled. Administrator access is needed for exploitation.

📦 What is this software?

Import Export Wordpress Users by Webtoffee

View all CVEs affecting Import Export Wordpress Users →

⚠️ Risk & Real-World Impact

🔴

Worst Case

If combined with a POP chain from another plugin/theme, attackers could execute arbitrary code, delete files, or exfiltrate sensitive data, potentially leading to complete site compromise.

🟠

Likely Case

Limited impact since no POP chain exists in the vulnerable plugin itself; exploitation requires specific additional vulnerable components that may not be present.

🟢

If Mitigated

With proper access controls limiting Administrator accounts and regular plugin updates, impact is minimal to none.

🌐 Internet-Facing: MEDIUM

🏢 Internal Only: LOW

🎯 Exploit Status

Public PoC: ✅ No

Weaponized: UNKNOWN

Unauthenticated Exploit: ✅ No

Complexity: MEDIUM

Exploitation requires Administrator credentials and presence of a POP chain in another plugin/theme. No known POP chain exists in the vulnerable plugin itself.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Version after 2.6.2

Vendor Advisory: https://wordpress.org/plugins/users-customers-import-export-for-wp-woocommerce/#developers

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'Export and Import Users and Customers' plugin. 4. Click 'Update Now' if available, or manually update to latest version. 5. Verify plugin version is above 2.6.2.

🔧 Temporary Workarounds

Disable vulnerable plugin

all

Temporarily disable the plugin until patched version is available

Restrict Administrator accounts

all

Minimize number of Administrator accounts and implement strong authentication

🧯 If You Can't Patch

Remove the plugin entirely if not essential
Implement web application firewall rules to block requests containing serialized PHP objects

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Installed Plugins for 'Export and Import Users and Customers' plugin version 2.6.2 or lower

Check Version:

wp plugin list --name='Export and Import Users and Customers' --field=version

Verify Fix Applied:

Verify plugin version is above 2.6.2 in WordPress admin panel

📡 Detection & Monitoring

Log Indicators:

Unusual POST requests to /wp-admin/admin-ajax.php with 'form_data' parameter containing serialized data
Multiple failed authentication attempts followed by successful Administrator login

Network Indicators:

HTTP requests with serialized PHP objects in POST data to WordPress admin endpoints

SIEM Query:

source="wordpress_logs" AND (url_path="/wp-admin/admin-ajax.php" AND post_data CONTAINS "form_data" AND post_data MATCHES "O:[0-9]+:")

📊 Metadata

CVE ID: CVE-2025-1971

CVSS v3 Score: 7.2 (HIGH)

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

CWE: CWE-502

EPSS Score: 1.7% exploit probability (81.9th percentile)

Published: March 22, 2025

Last Updated: July 9, 2025

🔗 References

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