CVE-2025-12086 Overview
CVE-2025-12086 is an Insecure Direct Object Reference (IDOR) vulnerability [CWE-639] in the Return Refund and Exchange For WooCommerce plugin for WordPress. The flaw affects all versions up to and including 4.5.5. The plugin fails to validate a user-controlled key in the wps_rma_cancel_return_request AJAX endpoint. Authenticated attackers with Subscriber-level access or above can delete refund requests belonging to other users. The issue impacts data integrity for WooCommerce merchants that rely on the plugin to manage returns and refunds.
Critical Impact
Any authenticated user with Subscriber-level privileges or higher can cancel and delete arbitrary refund requests submitted by other customers, disrupting refund workflows and eroding customer trust.
Affected Products
- Return Refund and Exchange For WooCommerce plugin for WordPress
- All versions up to and including 4.5.5
- WordPress sites running WooCommerce with the affected plugin installed
Discovery Timeline
- 2025-11-21 - CVE-2025-12086 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-12086
Vulnerability Analysis
The vulnerability is classified as an Insecure Direct Object Reference [CWE-639]. It resides in the plugin's wps_rma_cancel_return_request AJAX handler. This endpoint accepts a user-supplied identifier that references a specific refund request stored by the plugin. The handler does not verify whether the currently authenticated user actually owns the referenced refund request. As a result, an attacker can submit a crafted AJAX request that references another user's refund identifier and cause it to be canceled or deleted.
Because the endpoint requires only Subscriber-level authentication, which is the lowest privileged authenticated role in WordPress, the barrier to exploitation is low on any site that permits public registration. The impact is limited to integrity of refund request records; the endpoint does not disclose or alter other stored data.
Root Cause
The root cause is missing authorization on a user-controlled key. The plugin trusts the client-provided refund request identifier without cross-referencing it against the current session's user ID or capability set. This is a canonical IDOR pattern where authentication is enforced but object-level authorization is not.
Attack Vector
Exploitation requires network access to the target WordPress site and a valid low-privilege account. The attacker authenticates, then issues a POST request to the WordPress admin-ajax.php endpoint invoking the wps_rma_cancel_return_request action with a targeted refund request identifier. No user interaction is required from the victim. A detailed technical write-up is available in the Wordfence Vulnerability Report and the corresponding WordPress Plugin Changeset.
No public proof-of-concept exploit code is currently referenced in the CVE record, and no verified code examples are available for reproduction.
Detection Methods for CVE-2025-12086
Indicators of Compromise
- Unexpected deletions or cancellations of refund requests in WooCommerce order records without corresponding customer-initiated actions.
- Access log entries showing POST requests to admin-ajax.php with the action=wps_rma_cancel_return_request parameter originating from Subscriber-level accounts.
- Customer complaints reporting that submitted refund requests have disappeared or been canceled without their consent.
Detection Strategies
- Correlate WordPress user sessions with refund request identifiers referenced in AJAX requests to detect cross-user object access.
- Alert when a single authenticated session issues multiple wps_rma_cancel_return_request calls referencing different refund IDs within a short window.
- Review plugin audit logs and database change logs for refund request state transitions that do not map to the owning customer's session.
Monitoring Recommendations
- Enable verbose WordPress and WooCommerce logging for AJAX actions related to the refund and exchange plugin.
- Monitor newly registered Subscriber accounts on WooCommerce stores that permit open registration, especially those making immediate AJAX calls.
- Track the plugin version in your asset inventory and alert on any host still running versions 4.5.5 or earlier.
How to Mitigate CVE-2025-12086
Immediate Actions Required
- Update the Return Refund and Exchange For WooCommerce plugin to a version later than 4.5.5 as soon as the patched release is available from the vendor.
- Audit refund request records for unauthorized cancellations occurring on or after plugin installation.
- Restrict new user registration on WooCommerce sites that do not require public Subscriber accounts.
Patch Information
A vendor fix is tracked in the plugin's source repository. Review the WordPress Plugin Changeset for the code change addressing the missing authorization check, and consult the Wordfence Vulnerability Report for remediation guidance.
Workarounds
- Temporarily deactivate the Return Refund and Exchange For WooCommerce plugin until an updated version can be installed.
- Disable public user registration in WordPress settings to reduce the pool of accounts capable of reaching the vulnerable endpoint.
- Use a web application firewall rule to block requests to admin-ajax.php where the action parameter equals wps_rma_cancel_return_request until patching is complete.
# Example WAF rule concept (adapt to your platform)
# Block POST requests to admin-ajax.php targeting the vulnerable action
SecRule REQUEST_URI "@endsWith /wp-admin/admin-ajax.php" \
"chain,phase:2,deny,status:403,id:1012086,msg:'Block CVE-2025-12086 IDOR endpoint'"
SecRule ARGS:action "@streq wps_rma_cancel_return_request"
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
