# CVE-2026-76009: Auth bypass in Next-Cart Store to WooCommerce Migration

> Unauthenticated attackers can bypass authentication via a hardcoded token fallback to execute arbitrary SQL and delete files, leading to full site takeover.

- **Severity:** High 8.1 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 9 Sep 2026
- **Updated:** 9 Sep 2026
- **Also known as:** GHSA-wgp6-gqx5-628c

## What is CVE-2026-76009?

CVE-2026-76009 is a high-severity authentication bypass vulnerability in martinnguyen1990 Next-Cart Store to WooCommerce Migration, published on 9 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The Next-Cart Store to WooCommerce Migration plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 3.9.8 via the `NCWM_Kitconnect::run()` function. This is due to the plugin registering the `/wp-json/next_cart/v1/migration` REST route with `permission_callback` set to `__return_true` and relying on a hardcoded fallback value of `__token__` in `get_option('nextcart_token', '__token__')` when the `nextcart_token` option has not yet been written to the database. This makes it possible for unauthenticated attackers to bypass authentication to the migration endpoint by supplying the literal string `__token__` as the token, gaining access to privileged handlers that pass attacker-controlled SQL directly to `$wpdb->query()` and `$wpdb->get_results()` — enabling arbitrary SQL execution including administrator account creation — and pass an attacker-controlled path to `unlink()`, enabling arbitrary file deletion and full site takeover. The hardcoded fallback is reachable whenever the `nextcart_token` option has not yet been populated, which occurs after WP-CLI, network, or programmatic plugin activation without a subsequent authenticated `wp-admin` visit, as token generation is deferred to `admin_init` via `register_settings()`.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2026-76009?


## How do I fix CVE-2026-76009?

No fix has been published for CVE-2026-76009 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-76009 being exploited?

There is no known exploitation of CVE-2026-76009 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-76009 and fix it if it is affected.

What it is: CVE-2026-76009 is a high-severity authentication bypass vulnerability in martinnguyen1990 Next-Cart Store to WooCommerce Migration, published on 9 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-76009 in the wild and no public exploit code.

Affected product: martinnguyen1990 Next-Cart Store to WooCommerce Migration. 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-2026-76009/ (Markdown: https://insights.sbomify.com/CVE-2026-76009/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-76009
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-76009
- OSV: https://osv.dev/vulnerability/CVE-2026-76009

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-76009/
Summaries are generated and may contain mistakes; the official description above is the record.