The Return Refund and Exchange For WooCommerce plugin for WordPress suffers from an authorization bypass vulnerability (CWE-639) due to insufficient validation of a user-controlled key parameter in the wps_rma_fetch_order_msgs() function. This allows authenticated users with low privileges (Subscriber and above) to access order messages of other users, violating access controls. The CVSS 3.1 base score is 5.4 (medium), reflecting network attack vector, low attack complexity, and limited confidentiality and integrity impact. No official patch or vendor advisory is currently available, and the plugin is not a cloud service, so remediation depends on vendor action or user mitigation.

An attacker with authenticated Subscriber-level access or higher can read order messages of other users, potentially exposing sensitive information related to orders. The vulnerability does not impact availability and has limited impact on integrity. There are no known exploits in the wild at this time.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict Subscriber-level access to trusted users only. Monitor for updates from the vendor wpswings regarding an official fix. No cloud service remediation applies as this is a self-hosted WordPress plugin.