CVE-2026-3426 Missing authorization in RTMKit

Medium 4.3 Published Updated

Authenticated attackers with Author access can modify or reset site-wide widget configurations due to missing capability checks.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-3426?

CVE-2026-3426 is a medium-severity missing authorization vulnerability in rometheme RTMKit, published on 13 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

The RTMKit Addons for Elementor plugin for WordPress is vulnerable to unauthorized modification of data due to missing capability checks on the save_widget() and reset_all_widgets() functions in all versions up to, and including, 2.0.2. This makes it possible for authenticated attackers, with Author-level access and above, to modify or reset site-wide widget configurations.

Weakness: CWE-862

Which versions are affected by CVE-2026-3426?

How do I fix CVE-2026-3426?

No fix has been published for CVE-2026-3426 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-2026-3426 being exploited?

There is no known exploitation of CVE-2026-3426 in the wild and no public exploit code.

Sources

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