# CVE-2026-3595: Riaxe Product Customizer <= 2.1.2 - Unauthenticated Arbitrary User Deletion via 'user_id' Parameter

> Unauthenticated attackers can delete arbitrary WordPress user accounts, including administrators, via a vulnerable REST API endpoint in the Riaxe Product Customizer plugin.

- **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:** 16 Apr 2026
- **Updated:** 16 Apr 2026
- **Also known as:** GHSA-4g9p-x8vm-f7qg

## What is CVE-2026-3595?

CVE-2026-3595 is a medium-severity missing authorization vulnerability in imprintnext Riaxe Product Customizer, published on 16 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The Riaxe Product Customizer plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 2.1.2. This is due to the plugin registering a REST API route at POST /wp-json/InkXEProductDesignerLite/customer/delete_customer without a permission_callback, causing WordPress to default to allowing unauthenticated access, and the inkxe_delete_customer() callback function taking an array of user IDs from the request body and passing each one directly to wp_delete_user() without any authentication or authorization checks. This makes it possible for unauthenticated attackers to delete arbitrary WordPress user accounts, including administrator accounts, leading to complete site lockout and data loss.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2026-3595?


## How do I fix CVE-2026-3595?

No fix has been published for CVE-2026-3595 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-3595 being exploited?

There is no known exploitation of CVE-2026-3595 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-3595 and fix it if it is affected.

What it is: CVE-2026-3595 is a medium-severity missing authorization vulnerability in imprintnext Riaxe Product Customizer, published on 16 Apr 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-2026-3595 in the wild and no public exploit code.

Affected product: imprintnext Riaxe Product Customizer. 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-2026-3595/ (Markdown: https://insights.sbomify.com/CVE-2026-3595/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-3595
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-3595
- OSV: https://osv.dev/vulnerability/CVE-2026-3595

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-3595/
Summaries are generated and may contain mistakes; the official description above is the record.