Is CVE-2026-15406 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-15406 being exploited in the wild.

How severe is CVE-2026-15406?

High severity, with a CVSS score of 7.5, published 9 September 2026.

Which products and versions are affected?

Nevesco Eventin up to and including 4.1.22.

Is there a fix for CVE-2026-15406?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-15406 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-15406?

Check whether anything you run is named in the advisory. 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-2026-15406: Eventin Local File Inclusion in event_layout parameter

CVE-2026-15406 · Severity: high · CVSS 7.5 · Published 2026-09-09

Eventin is a WordPress plugin used for managing event calendars, registrations, and ticket bookings. Authenticated users with custom-level access or higher can exploit a file inclusion vulnerability to load and execute arbitrary PHP files on the server, potentially exposing sensitive data or gaining full control over the website.

Quick answers

Is CVE-2026-15406 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-15406 being exploited in the wild.
How severe is CVE-2026-15406?: High severity, with a CVSS score of 7.5, published 9 September 2026.
Which products and versions are affected?: Nevesco Eventin up to and including 4.1.22.
Is there a fix for CVE-2026-15406?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-15406 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-15406?: Check whether anything you run is named in the advisory. 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

The vulnerability is a Local File Inclusion (LFI) flaw in the 'event_layout' parameter affecting all versions up to 4.1.22. The vulnerable component fails to properly sanitize or validate file path inputs before including PHP files via include/require statements. An authenticated attacker with custom-level access or above can exploit this by manipulating the event_layout parameter to include arbitrary .php files from the server, leading to arbitrary PHP code execution. This is particularly dangerous when combined with the ability to upload PHP files. No patch status is currently indicated.

Affected products

Nevesco Eventin up to and including 4.1.22

Timeline

2026-09-09: disclosed

References

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