CVE-2026-13329 WC Buckaroo BPE Gateway < 4.9.0 - Subscriber+ Unauthorized Order Refund

Medium 6.5 Published Updated

Authenticated users, including subscribers, can trigger unauthorized refunds on captured orders due to missing capability checks in the Buckaroo WooCommerce plugin.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-13329?

CVE-2026-13329 is a medium-severity missing authorization vulnerability in Unknown Buckaroo Woocommerce Payments Plugin, published on 1 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

The Buckaroo Woocommerce Payments Plugin WordPress plugin before 4.9.0 does not perform any capability check or nonce validation on an AJAX action that processes payment capture refunds, allowing any authenticated user, including Subscribers, to trigger refunds against captured orders.

Weakness: CWE-284

Which versions are affected by CVE-2026-13329?

How do I fix CVE-2026-13329?

No fix has been published for CVE-2026-13329 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-13329 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-13329 exists.

Sources

Also known as GHSA-63p2-7wgc-gxrq.

Is CVE-2026-13329 in your software?

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