CVE-2026-3596 Missing authorization in Riaxe Product Customizer
Unauthenticated attackers can update arbitrary WordPress options to escalate privileges to administrator via the install-imprint AJAX action.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-3596?
CVE-2026-3596 is a critical 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 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.
Weakness: CWE-862
Which versions are affected by CVE-2026-3596?
How do I fix CVE-2026-3596?
No fix has been published for CVE-2026-3596 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-3596 being exploited?
There is no known exploitation of CVE-2026-3596 in the wild and no public exploit code.
Sources
Also known as GHSA-6cjg-w4wg-37mh.