CVE-2026-28055 HIGH

CVE-2026-28055: WordPress M.Williamson theme <= 1.2.11 - Local File Inclusion vulnerability

Vendor Themerex
Product M.Williamson
Weakness CWE-98 · PHP file inclusion
Published March 5, 2026
Last update April 28, 2026
View on NVD All CVEs

CVSS base score

8.1/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in ThemeREX M.Williamson williamson allows PHP Local File Inclusion.This issue affects M.Williamson: from n/a through <= 1.2.11.

Explanation of Vulnerability in Simple Terms

02Summary

M.Williamson versions up to 1.2.11 contain a flaw that allows an attacker to read sensitive data, modify site content, or disrupt service availability. The vulnerability requires network access but no authentication or user interaction. The exact attack mechanism is unclear due to incomplete vulnerability classification data.

What an attacker can do

03Attacker Capabilities

Read sensitive data, modify site content, or cause the site to become unavailable.

Potential impact on your site

04Site Impact

Attackers can steal data, deface your site, or take it offline without needing a user account.

Conditions required to exploit

05Prerequisites

Network access to the site; no authentication or user interaction required.

Key dates

06Disclosure timeline

March 5, 2026 CVE published
April 28, 2026 Record updated