CVE-2026-22400 WordPress Holmes theme <= 1.7 - Insecure Direct Object References (IDOR) vulnerability

Medium 5.4 Published Updated

Attackers can bypass authorization controls to access or modify unauthorized resources in the WordPress Holmes theme.

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-2026-22400?

CVE-2026-22400 is a medium-severity missing authorization vulnerability in Mikado-Themes Holmes, published on 22 Jan 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Authorization Bypass Through User-Controlled Key vulnerability in Mikado-Themes Holmes holmes allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Holmes: from n/a through <= 1.7.

Weakness: CWE-639

Which versions are affected by CVE-2026-22400?

How do I fix CVE-2026-22400?

No fix has been published for CVE-2026-22400 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-2026-22400 being exploited?

There is no known exploitation of CVE-2026-22400 in the wild and no public exploit code.

Sources

Also known as GHSA-6h2x-qqxv-62vv.

Is CVE-2026-22400 in your software?

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