CVE-2026-15667
Deferred Deferred - Pending Action

Local File Inclusion in Eventin WordPress Plugin

Publication date: 2026-09-09

Last updated on: 2026-09-09

Assigner: Wordfence

Description
The Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered) plugin for WordPress is vulnerable to Local File Inclusion in all versions up to, and including, 4.1.22 via the 'event_layout' parameter parameter. This makes it possible for authenticated attackers, with contributor-level access and above, to include and execute arbitrary .php files on the server, allowing the execution of any PHP code in those files. This can be used to bypass access controls, obtain sensitive data, or achieve code execution in cases where .php file types can be uploaded and included. The etn_manage_event capability is assigned to Contributors by default, meaning any Contributor-level user can set the malicious event_layout value via the REST API without any additional configuration.

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Meta Information

Published
2026-09-09
Last Modified
2026-09-09
Generated
2026-09-29
AI Q&A
2026-09-09
EPSS Evaluated
2026-09-27
NVD
CVE-2026-15667
EUVD
EUVD-2026-74542

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
eventin event_calendar to 4.1.22 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-98 The PHP application receives input from an upstream component, but it does not restrict or incorrectly restricts the input before its usage in "require," "include," or similar functions.

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Executive Summary

This vulnerability is a Local File Inclusion (LFI) flaw in the Eventin WordPress plugin up to version 4.1.22. It allows authenticated attackers with contributor-level access or higher to include and execute arbitrary PHP files on the server by manipulating the 'event_layout' parameter. This can lead to code execution, data theft, or bypassing access controls.

Detection Guidance

Check WordPress installations for the Eventin plugin versions up to 4.1.22. Inspect server logs for unusual file inclusion attempts via the 'event_layout' parameter. Use tools like grep to search for patterns like 'event_layout' in access logs.

Impact Analysis

If you use the affected Eventin plugin, attackers could exploit this to run malicious code on your server, steal sensitive data, or gain unauthorized access. Contributor-level users could abuse this without extra permissions due to default capability assignments.

Compliance Impact

This vulnerability could lead to unauthorized data access or exfiltration, violating GDPR (data protection) and HIPAA (health data privacy) by exposing sensitive user information. Compliance may be compromised if attackers access or leak regulated data.

Mitigation Strategies

Update the Eventin plugin to the latest version immediately. Remove or restrict contributor-level access to users who do not require it. Monitor for unauthorized file uploads or inclusions in the WordPress uploads directory.

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