# CVE-2026-16569: ShopApper <= 0.4.62 - Subscriber+ Arbitrary Product Stock Update

> Authenticated users can modify arbitrary product stock quantities due to missing capability checks in the ShopApper WooCommerce plugin.

- **Severity:** Medium 4.3 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/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:** 27 Aug 2026
- **Updated:** 27 Aug 2026
- **Also known as:** GHSA-6cxp-7f85-p38r

## What is CVE-2026-16569?

CVE-2026-16569 is a medium-severity missing authorization vulnerability in Unknown Mobile App for WooCommerce: ShopApper Mobile App Builder Service for WooCommerce, published on 27 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The Mobile App for WooCommerce: ShopApper Mobile App Builder Service for WooCommerce WordPress plugin through 0.4.62 does not check the user's capabilities before allowing a stock-update operation through one of its REST endpoints, allowing any authenticated user, such as a customer or subscriber, to change the stock quantity of arbitrary products.

Weakness: CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2026-16569?


## How do I fix CVE-2026-16569?

No fix has been published for CVE-2026-16569 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-16569 being exploited?

There is no known exploitation of CVE-2026-16569 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-16569 and fix it if it is affected.

What it is: CVE-2026-16569 is a medium-severity missing authorization vulnerability in Unknown Mobile App for WooCommerce: ShopApper Mobile App Builder Service for WooCommerce, published on 27 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-16569 in the wild and no public exploit code.

Affected product: Unknown Mobile App for WooCommerce: ShopApper Mobile App Builder Service for WooCommerce. 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-2026-16569/ (Markdown: https://insights.sbomify.com/CVE-2026-16569/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-16569
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-16569
- OSV: https://osv.dev/vulnerability/CVE-2026-16569

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-16569/
Summaries are generated and may contain mistakes; the official description above is the record.