Vulnerability · Published Jan 7, 2026 · Assigned by Wordfence
CVE-2026-0656iPaymu Payment Gateway for WooCommerce <= 2.0.2 - Missing Authentication to Unauthenticated Payment Bypass and Order Information Disclosure
High 8.2
In plain English
A high-severity missing authorization in iPaymu Payment Gateway for WooCommerce from ipaymu. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 28% of all known vulnerabilities).
Official description
The iPaymu Payment Gateway for WooCommerce plugin for WordPress is vulnerable to Missing Authentication in all versions up to, and including, 2.0.2 via the 'check_ipaymu_response' function. This is due to the plugin not validating webhook request authenticity through signature verification or origin checks. This makes it possible for unauthenticated attackers to mark WooCommerce orders as paid by sending crafted POST requests to the webhook endpoint without any payment occurring, as well as enumerate order IDs and obtain valid order keys via GET requests, exposing customer order PII including names, addresses, and purchased products.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| ipaymu | iPaymu Payment Gateway for WooCommerce | 0 – through 2.0.2 |
Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/7e639aed-ec67-4212-9051-1f7465bbfde2?source=cve
- https://plugins.trac.wordpress.org/browser/ipaymu-for-woocommerce/tags/2.0.2/gateway.php?marks=316-336,370-380#L316
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3429657%40ipaymu-for-woocommerce&new=3429657%40ipaymu-for-woocommerce