CVEvulnerability
CVE-2026-1305
5.3 MEDIUM
Official page ↗
- Status
- Deferred
- Published
- 2026-02-27
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- Weaknesses
- CWE-287
Description
The Japanized for WooCommerce plugin for WordPress is vulnerable to Improper Authentication in versions up to, and including, 2.8.4. This is due to a flawed permission check in the `paidy_webhook_permission_check` function that unconditionally returns `true` when the webhook signature header is omitted. This makes it possible for unauthenticated attackers to bypass payment verification and fraudulently mark orders as "Processing" or "Completed" without actual payment via a crafted POST request to the Paidy webhook endpoint.
Related
Weakness · CWE (1)
- CWE-287 Improper Authentication weakness
References
- https://plugins.trac.wordpress.org/browser/woocommerce-for-japan/tags/2.8.2/includes/gateways/paidy/class-wc-paidy-endpoint.php#L108 plugins.trac.wordpress.org
- https://plugins.trac.wordpress.org/browser/woocommerce-for-japan/tags/2.8.2/includes/gateways/paidy/class-wc-paidy-endpoint.php#L63 plugins.trac.wordpress.org
- https://plugins.trac.wordpress.org/browser/woocommerce-for-japan/trunk/includes/gateways/paidy/class-wc-paidy-endpoint.php#L108 plugins.trac.wordpress.org
- https://plugins.trac.wordpress.org/browser/woocommerce-for-japan/trunk/includes/gateways/paidy/class-wc-paidy-endpoint.php#L63 plugins.trac.wordpress.org
- https://plugins.trac.wordpress.org/changeset/3464868/woocommerce-for-japan/trunk/includes/gateways/paidy/class-wc-paidy-endpoint.php plugins.trac.wordpress.org
- https://www.wordfence.com/threat-intel/vulnerabilities/id/8cef4b2b-ae8d-4e18-b763-6960a0b944f7?source=cve www.wordfence.com