# CVE-2026-6451: CMS für Motorrad Werkstätten <= 1.0.0 - Cross-Site Request Forgery

> Unauthenticated attackers can delete arbitrary workshop data via CSRF by tricking logged-in users into clicking malicious links.

- **Severity:** Medium 4.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 17 Apr 2026
- **Updated:** 17 Apr 2026
- **Also known as:** GHSA-8mf7-m4px-v9qq

## What is CVE-2026-6451?

CVE-2026-6451 is a medium-severity vulnerability in tholstkabelbwde Plugin: CMS für Motorrad Werkstätten, published on 17 Apr 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

The cms-fuer-motorrad-werkstaetten plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to and including 1.0.0. This is due to missing nonce validation on all eight AJAX deletion handlers: vehicles_cfmw_d_vehicle, contacts_cfmw_d_contact, suppliers_cfmw_d_supplier, receipts_cfmw_d_receipt, positions_cfmw_d_position, catalogs_cfmw_d_article, stock_cfmw_d_item, and settings_cfmw_d_catalog. None of these handlers call check_ajax_referer() or wp_verify_nonce(), nor do they perform any capability checks via current_user_can(). This makes it possible for unauthenticated attackers to delete arbitrary vehicles, contacts, suppliers, receipts, positions, catalog articles, stock items, or entire supplier catalogs via a forged request, provided they can trick a logged-in user into performing an action such as clicking a link to a malicious page.

Weakness: CWE-352 (Cross-Site Request Forgery)

## Which versions are affected by CVE-2026-6451?


## How do I fix CVE-2026-6451?

No fix has been published for CVE-2026-6451 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-6451 being exploited?

There is no known exploitation of CVE-2026-6451 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-6451 and fix it if it is affected.

What it is: CVE-2026-6451 is a medium-severity vulnerability in tholstkabelbwde Plugin: CMS für Motorrad Werkstätten, published on 17 Apr 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-6451 in the wild and no public exploit code.

Affected product: tholstkabelbwde Plugin: CMS für Motorrad Werkstätten. 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-2026-6451/ (Markdown: https://insights.sbomify.com/CVE-2026-6451/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-6451
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-6451
- OSV: https://osv.dev/vulnerability/CVE-2026-6451

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-6451/
Summaries are generated and may contain mistakes; the official description above is the record.