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

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

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 1 Aug 2026
- **Updated:** 3 Aug 2026
- **Also known as:** GHSA-63p2-7wgc-gxrq

## 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 (Improper Access Control)

## 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.

## Is CVE-2026-13329 being exploited?

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

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-13329 and fix it if it is affected.

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

Affected product: Unknown Buckaroo Woocommerce Payments Plugin. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-13329/ (Markdown: https://insights.sbomify.com/CVE-2026-13329/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-13329
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-13329
- OSV: https://osv.dev/vulnerability/CVE-2026-13329

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-13329/
Summaries are generated and may contain mistakes; the official description above is the record.