CVE-2025-12895 Kalium <= 3.29 - Missing Authorization to Unauthenticated Mail Relay via kalium_vc_contact_form_request

Medium 5.3 Published Updated

Unauthenticated attackers can exploit a missing capability check to use the theme as an open mail relay, sending arbitrary emails.

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-2025-12895?

CVE-2025-12895 is a medium-severity missing authorization vulnerability in Laborator Kalium 3 | Creative WordPress & WooCommerce Theme, published on 15 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The Kalium 3 | Creative WordPress & WooCommerce Theme theme for WordPress is vulnerable to unauthorized email sending due to a missing capability check on the kalium_vc_contact_form_request() function in all versions up to, and including, 3.29. This makes it possible for unauthenticated attackers to use the theme an an open mail relay and send email to arbitrary email addresses on the server's behalf.

Weakness: CWE-862

Which versions are affected by CVE-2025-12895?

How do I fix CVE-2025-12895?

No fix has been published for CVE-2025-12895 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-2025-12895 being exploited?

There is no known exploitation of CVE-2025-12895 in the wild and no public exploit code.

Sources

Also known as GHSA-gm4j-hg89-42fw.

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