CVE-2026-28027
Published: 05 March 2026
Description
Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in ThemeREX Kayon kayon allows PHP Local File Inclusion.This issue affects Kayon: from n/a through <= 1.3.
Mitigating Controls (NIST 800-53 r5)AI
Directly remediates the improper filename control flaw in the Kayon theme's PHP include/require statements by identifying, reporting, and patching vulnerable versions <=1.3.
Validates user-supplied filenames for PHP include/require to prevent local file inclusion by ensuring only safe, authorized paths are processed.
Restricts filenames input to PHP include/require statements to a whitelist of allowed values, blocking directory traversal sequences used in local file inclusion exploits.
Security SummaryAI
CVE-2026-28027 is an Improper Control of Filename for Include/Require Statement in PHP Program, classified as a PHP Remote File Inclusion vulnerability, in the ThemeREX Kayon WordPress theme. It enables PHP Local File Inclusion and affects Kayon versions from n/a through 1.3.
The vulnerability is exploitable over the network (AV:N) by unauthenticated attackers (PR:N) with no user interaction required (UI:N), though it involves high attack complexity (AC:H). Successful exploitation results in high impacts to confidentiality, integrity, and availability (C:H/I:H/A:H) within unchanged scope (S:U), yielding a CVSS v3.1 base score of 8.1.
Patchstack documents this Local File Inclusion vulnerability in the WordPress Kayon theme version 1.3 at https://patchstack.com/database/Wordpress/Theme/kayon/vulnerability/wordpress-kayon-theme-1-3-local-file-inclusion-vulnerability?_s_id=cve.
Details
- CWE(s)
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
The vulnerability is an LFI/RFI in a public-facing WordPress theme exploitable remotely without authentication, directly enabling exploitation of public-facing applications.