# CVE-2026-3567: Missing authorization in RepairBuddy – Repair Shop CRM & Booking Plugin for WordPress

> Authenticated subscribers can modify admin-level plugin settings by bypassing capability checks via a nonce generation flaw.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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:** Not needed
- **Fix available:** No
- **Published:** 20 Mar 2026
- **Updated:** 8 Apr 2026
- **Also known as:** GHSA-9v48-95f3-hqxh

## What is CVE-2026-3567?

CVE-2026-3567 is a medium-severity missing authorization vulnerability in sweetdaisy86 RepairBuddy – Repair Shop CRM & Booking Plugin for WordPress, published on 20 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The RepairBuddy – Repair Shop CRM & Booking Plugin for WordPress is vulnerable to unauthorized access in all versions up to, and including, 4.1132. The plugin exposes two AJAX handlers that, when combined, allow any authenticated user to modify admin-level plugin settings. First, the wc_rb_get_fresh_nonce() function (registered via wp_ajax and wp_ajax_nopriv hooks) allows any user to generate a valid WordPress nonce for any arbitrary action name by simply providing the nonce_name parameter, with no capability checks. Second, the wc_rep_shop_settings_submission() function only verifies the nonce (wcrb_main_setting_nonce) but performs no current_user_can() capability check before updating 15+ plugin options via update_option(). This makes it possible for authenticated attackers, with subscriber-level access and above, to modify all plugin configuration settings including business name, email, logo, menu label, GDPR settings, and more by first minting a valid nonce via the wc_rb_get_fresh_nonce endpoint and then calling the settings submission handler.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2026-3567?


## How do I fix CVE-2026-3567?

No fix has been published for CVE-2026-3567 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-3567 being exploited?

There is no known exploitation of CVE-2026-3567 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-3567 and fix it if it is affected.

What it is: CVE-2026-3567 is a medium-severity missing authorization vulnerability in sweetdaisy86 RepairBuddy – Repair Shop CRM & Booking Plugin for WordPress, published on 20 Mar 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-2026-3567 in the wild and no public exploit code.

Affected product: sweetdaisy86 RepairBuddy – Repair Shop CRM & Booking Plugin for WordPress. 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-2026-3567/ (Markdown: https://insights.sbomify.com/CVE-2026-3567/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-3567
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-3567
- OSV: https://osv.dev/vulnerability/CVE-2026-3567

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-3567/
Summaries are generated and may contain mistakes; the official description above is the record.