Is CVE-2026-39538 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-39538 being exploited in the wild.

How severe is CVE-2026-39538?

High severity, with a CVSS score of 7.5, published 8 April 2026.

Which products and versions are affected?

Mikado-Themes Mikado Core <= 1.6.

Is there a fix for CVE-2026-39538?

A patch was published on 2026-02-02: Patch released in version 2.2.2 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-39538 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-39538?

Check whether you run Mikado-Themes Mikado Core at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-39538: Mikado-Themes Mikado Core local file inclusion

Q: Is there a fix for CVE-2026-39538?

A patch was published on 2026-02-02: Patch released in version 2.2.2 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

Q: How is CVE-2026-39538 attacked?

It is attacked over the network, in a software library.

Q: Am I affected by CVE-2026-39538?

Check whether you run Mikado-Themes Mikado Core at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-39538 · Severity: high · CVSS 7.5 · Published 2026-04-08

Mikado Core is a foundational WordPress plugin used by various Mikado-Themes to provide core functionality. A security flaw in this plugin allows an attacker with basic contributor-level access to view sensitive internal files on the web server. This could lead to the exposure of database credentials or other configuration data, potentially resulting in a full site takeover.

Vendors: Mikado-Themes.

Quick answers

Is CVE-2026-39538 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-39538 being exploited in the wild.
How severe is CVE-2026-39538?: High severity, with a CVSS score of 7.5, published 8 April 2026.
Which products and versions are affected?: Mikado-Themes Mikado Core <= 1.6.
Is there a fix for CVE-2026-39538?: A patch was published on 2026-02-02: Patch released in version 2.2.2 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-39538 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-39538?: Check whether you run Mikado-Themes Mikado Core at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A Local File Inclusion (LFI) vulnerability exists in the Mikado Core plugin (mikado-core) for WordPress due to insufficient validation of user-supplied input used in PHP include or require statements (CWE-98). The flaw allows an authenticated attacker with 'Contributor' or higher privileges to manipulate file paths and include arbitrary local files from the server. Successful exploitation can lead to the disclosure of sensitive information, such as the wp-config.php file containing database credentials. The vulnerability is present in versions up to and including 1.6 and is addressed in version 2.2.2.

Affected products

Mikado-Themes Mikado Core <= 1.6

Timeline

2026-01-03: other: Vulnerability reported by researcher
2026-02-02: disclosed: Initial disclosure by Patchstack
2026-04-08: advisory: CVE published to NVD
2026-02-02: patched: Patch released in version 2.2.2

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.