CVE-2025-12881

5.4 MEDIUM

📋 TL;DR

This vulnerability allows authenticated WordPress users with Subscriber-level access or higher to read other users' order messages through the Return Refund and Exchange For WooCommerce plugin. Attackers can exploit missing validation on user-controlled parameters to access sensitive order communication data. All WordPress sites using vulnerable plugin versions are affected.

💻 Affected Systems

Products:
  • Return Refund and Exchange For WooCommerce WordPress plugin
Versions: All versions up to and including 4.5.5
Operating Systems: All
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress with WooCommerce and the vulnerable plugin installed. Attackers need at least Subscriber-level authenticated access.

⚠️ 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 systematically harvest sensitive customer information including order details, personal communications, and potentially payment-related information, leading to data breach and privacy violations.

🟠

Likely Case

Unauthorized access to other users' order messages, potentially exposing customer names, email addresses, order details, and refund/return communications.

🟢

If Mitigated

Limited to authenticated users only, preventing mass data exfiltration but still allowing targeted information gathering by malicious insiders or compromised accounts.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires authenticated access but is straightforward once authenticated. The vulnerability is in the wps_rma_fetch_order_msgs() function.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 4.5.6 and later

Vendor Advisory: https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3394215%40woo-refund-and-exchange-lite&new=3394215%40woo-refund-and-exchange-lite&sfp_email=&sfph_mail=

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Return Refund and Exchange For WooCommerce'. 4. Click 'Update Now' if available. 5. Alternatively, download version 4.5.6+ from WordPress repository and manually update.

🔧 Temporary Workarounds

Disable vulnerable plugin

all

Temporarily disable the Return Refund and Exchange For WooCommerce plugin until patched

wp plugin deactivate woo-refund-and-exchange-lite

Restrict user roles

all

Limit Subscriber-level accounts and review user permissions

🧯 If You Can't Patch

  • Implement web application firewall rules to block requests to the vulnerable wps_rma_fetch_order_msgs() endpoint
  • Monitor and audit access logs for suspicious order message retrieval patterns

🔍 How to Verify

Check if Vulnerable:

Check plugin version in WordPress admin under Plugins → Installed Plugins. If version is 4.5.5 or lower, you are vulnerable.

Check Version:

wp plugin get woo-refund-and-exchange-lite --field=version

Verify Fix Applied:

Verify plugin version is 4.5.6 or higher. Test authenticated access to order messages to ensure proper authorization checks.

📡 Detection & Monitoring

Log Indicators:

  • Multiple requests to /wp-admin/admin-ajax.php with action=wps_rma_fetch_order_msgs from single user accounts
  • Unusual order message access patterns across different user IDs

Network Indicators:

  • POST requests to admin-ajax.php with wps_rma_fetch_order_msgs action containing manipulated order_id parameters

SIEM Query:

source="wordpress.log" AND "admin-ajax.php" AND "wps_rma_fetch_order_msgs" AND (user_id!=order_owner_id)

🔗 References

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