Description
The Return Refund and Exchange For WooCommerce WordPress plugin before 4.6.4 does not correctly verify the ownership of guest orders in some of the AJAX actions it exposes to unauthenticated users, allowing them to read private order messages, post messages and attachments in the customer's name, and cancel return requests on any guest order.
Published: 2026-08-26
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Information Disclosure and Order Manipulation
Action: Upgrade Plugin
AI Analysis

Impact

The vulnerability arises because the Return Refund and Exchange For WooCommerce plugin does not verify the ownership of guest orders in certain AJAX actions. This flaw allows unauthenticated users to read private order messages, post new messages and attachments as if they were the customer, and cancel return requests on any guest order.

Affected Systems

Any WordPress site running the Return Refund and Exchange For WooCommerce plugin with a version earlier than 4.6.4 is vulnerable. This includes all installations that have the plugin installed and have not applied the 4.6.4 update or later.

Risk and Exploitability

The flaw can be exploited by an attacker without authentication simply by sending crafted AJAX requests. The CVSS score is 6.5, and the EPSS score is <1%. The vulnerability is not listed in the CISA KEV catalog, but because the attack is trivial and the impact is significant, the risk is high.

Generated by OpenCVE AI on August 26, 2026 at 20:17 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Update the Return Refund and Exchange For WooCommerce plugin to version 4.6.4 or later.
  • If an immediate update is not possible, deactivate the plugin or block the vulnerable AJAX endpoints to prevent unauthenticated access.
  • Configure web‑application firewall rules to restrict unauthenticated requests to the plugin’s AJAX URLs.

Generated by OpenCVE AI on August 26, 2026 at 20:17 UTC.

Tracking

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Advisories

No advisories yet.

History

Wed, 26 Aug 2026 18:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-285

Wed, 26 Aug 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 26 Aug 2026 15:45:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N'}

Wed, 26 Aug 2026 07:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284
CWE-285

Wed, 26 Aug 2026 06:15:00 +0000

Type Values Removed Values Added
Description The Return Refund and Exchange For WooCommerce WordPress plugin before 4.6.4 does not correctly verify the ownership of guest orders in some of the AJAX actions it exposes to unauthenticated users, allowing them to read private order messages, post messages and attachments in the customer's name, and cancel return requests on any guest order.
Title Woo Refund And Exchange Lite < 4.6.4 - Unauthenticated Guest Order Message Disclosure and Manipulation
References

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: WPScan

Published:

Updated: 2026-08-26T14:43:07.838Z

Reserved: 2026-08-21T07:47:28.952Z

Link: CVE-2026-77695

cve-icon Vulnrichment

Updated: 2026-08-26T14:38:27.491Z

cve-icon NVD

Status : Deferred

Published: 2026-08-26T06:16:29.410

Modified: 2026-08-26T16:30:52.723

Link: CVE-2026-77695

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-26T20:30:11Z

Weaknesses